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Bay State Remodeling

Design-build remodeler serving Greater Boston. Kitchens, bathrooms, whole-home renovations, and additions — one project lead from design through Completion.

A Bay State Holdings Group company. Our design showroom is Bay State Kitchen Gallery in Waltham — same company, one contract, no handoffs.

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121B Tremont St., Suite 24
Boston, MA 02135
(617) 397-5158
info@baystateremodeling.com
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  • Attic
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  • Brookline
  • Cambridge
  • Wellesley
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© 2026 Bay State Holdings Group, Inc. d/b/a Bay State Remodeling. Serving Greater Boston since 2007. All rights reserved.
Licensed & insured in MA · HIC #169948 · CSL CS-110634 · Written proposals, always · One project lead per home · Greater Boston service area.Staff
    A completed Bay State bathroom in Greater Boston — marble double vanity and a glass walk-in shower
    The Bathroom Remodeling Guide

    The Bathroom Remodeling Guide

    Everything you need to know before you remodel your bathroom in Greater Boston.

    A 13-chapter guide for homeowners in Newton, Brookline, Wellesley, Lexington, Cambridge, and surrounding towns. How to vet contractors, understand permits, budget your project, and what to expect from the first call to the final walkthrough.

    Since 2007
    Massachusetts operations
    4.8
    Google rating
    Always
    Written proposals
    18+
    MA Towns Served
    Contents

    The 13 chapters

    1. 01Where to Start
    2. 02Insurance Requirements
    3. 03Licensing & Registration
    4. 04Permits & Inspections
    5. 05The Contract Checklist
    6. 06Your Project Budget
    7. 07Project Timeline
    8. 08The Consultation
    9. 09Design & Selections
    10. 10Final Plan & Approval
    11. 11Permitting & Procurement
    12. 12Construction Phase
    13. 13Completion & Warranty
    Chapter 01

    Where to start — find the right contractor

    Before you hire a bathroom remodeling contractor in the Boston area, take time to vet your options thoroughly. Use both personal referrals and online research to ensure you choose a company that is reputable, experienced, and the right fit for your project.

    Start with referrals — then verify

    Getting a referral from a family member, neighbor, or friend is a great starting point — but don't assume that their positive experience guarantees the same outcome for you. Ask when their project was completed and who they worked with directly. Was there a dedicated project manager? Identify the key team members involved in their remodel and confirm whether those same people would be assigned to your project. This ensures you are evaluating the contractor based on current staff and capabilities, not just past reputation.

    Don't trust the website alone

    A professional website with attractive photos and persuasive text can be impressive — but appearances can be misleading. Look for signs that photos are authentic, such as embedded watermarks, company logos, or project location details. Be aware that some companies use stock images or even copy content from other businesses. Always verify a contractor's portfolio and make sure their work is genuinely their own.

    A completed Bay State Remodeling project photo with the company's embedded watermark
    Before/after and detail shots carrying the Bay State watermark and logo.

    What other Greater Boston homeowners say

    Reviews tell you what to expect when something goes wrong — which matters more than what goes right.

    ★★★★★
    We originally hired them to work on two bathrooms, and once we saw what a good job they did, we hired them to basically redo our whole house. We are very satisfied with the result, and we would hire them again in a heartbeat.
    Bartlett Crescent Client · Google Review
    ★★★★★
    Not the cheapest, but you get what you pay for… Bay State workmen went the extra mile to get it how I wanted. Altogether satisfied with the job.
    Bathsheba G. · Google Review

    Hear it from a recent client

    This is the Bartlett Crescent project in Brookline — a whole-house remodel that started with two bathrooms.

    ★★★★★
    I did two full bathroom remodels with Bay State. Extremely pleased — a fantastic job, professional crews, constant communication, and a great price.
    Lori T. · Google Review
    Chapter 02

    Insurance — what to verify before you hire

    When choosing a bathroom remodeling contractor, insurance is non-negotiable. At minimum, the company should carry:

    • —General Liability Insurance — Protects your property in case of accidental damage during the project.
    • —Workers' Compensation Insurance — Ensures that if a worker is injured on your job, you are not held responsible for medical costs or lost wages.

    Always request a Certificate of Insurance (COI) issued directly from the insurance provider — not just a photocopy. This confirms coverage is current and valid. Contractors unwilling or unable to provide this should be avoided.

    Insurance MA remodeling contractors should carry

    Insurance TypeRequired ForMinimum Coverage
    Workers' CompensationAny business with one or more employeesAs required by MA statute
    Commercial AutoAny business owning or leasing vehicles for workMA compulsory auto minimum
    General LiabilityStandard for remodeling work (not state-mandated)No MA minimum — reputable firms carry $1M / $2M; request a Certificate of Insurance

    What good contractors carry beyond the minimum

    • —Umbrella Liability — extra coverage above general liability limits
    • —Professional Liability (E&O) — covers errors in design or professional advice
    • —Builder's Risk — protects materials and project site from theft, fire, vandalism
    • —Pollution / Environmental — covers mold, asbestos, hazardous material claims
    A Certificate of Insurance issued to Bay State RemodelingView PDF
    A Certificate of Insurance — sensitive limits may be redacted.
    Chapter 03

    Licensing & business registration in Massachusetts

    Two credentials matter in MA: the Home Improvement Contractor (HIC) registration and the Construction Supervisor License (CSL). Most legitimate remodelers carry both.

    HIC #169948

    Home Improvement Contractor

    CSL CS-110634

    Construction Supervisor License

    EST. 2007

    Massachusetts Operations

    BBB

    Accredited since 2012

    HIC vs. CSL — what's the difference?

    HIC RegistrationConstruction Supervisor License
    Issued byMA Office of Consumer Affairs (OCABR)MA Board of Building Regulations (BBRS)
    Required forAny remodeling on owner-occupied 1–4 family homesStructural changes or safety-system work
    CoversPainting, flooring, tiling, non-structural updatesLoad-bearing walls, additions, roof, structural framing
    PurposeGives homeowners access to MA Guaranty FundConfirms contractor qualified for structural work

    Always verify the license holder

    When hiring a remodeling contractor in Massachusetts, it is important to confirm that the person listed on the building permit is actually connected to the company doing your project. Many homeowners don't realize that some contractors or individuals use another person's Construction Supervisor License (CSL) to pull permits, even though that license holder may have no real involvement in the work. This practice can put you at risk if problems arise.

    How to verify a contractor's credentials

    • —Ask for the HIC registration number and CSL number — both
    • —Check the HIC at mass.gov/check-a-home-improvement-contractor
    • —Check the CSL at mass.gov/check-a-construction-supervisor
    • —Confirm the license holder is an owner or employee of the company you're hiring
    • —Cross-check the MA Business Entity Search to confirm the company is properly registered
    Chapter 04

    Permits & inspections — Greater Boston

    Every city and town in Greater Boston requires the same general permit types for bathroom remodeling. Fees and documentation vary slightly, but the categories are consistent.

    Permits required for a bathroom remodel

    Scope of WorkPermit RequiredNotes
    Full bathroom remodel with multiple tradesYes — Building + trade permitsShort or Long Form based on scope
    Structural changes (load-bearing walls)Yes — Long FormStamped engineering drawings required
    Plumbing rough-in & finishYes — Plumbing PermitAny fixture relocation or addition
    Electrical rough-in & finishYes — Electrical PermitAny new or relocated wiring
    HVAC modificationsYes — Mechanical PermitExhaust fan and ducting changes
    Cosmetic-only updatesTypically NoFinishes only, no system changes

    Real permits from Bay State projects

    We've pulled permits in 18+ Greater Boston towns. Here are real examples from recent projects.

    Approved building permit — Newton, MAView PDF
    Approved building permit — Newton, MA
    Approved building permit — Brookline, MAView PDF
    Approved building permit — Brookline, MA
    Approved building permit — Lexington, MAView PDF
    Approved building permit — Lexington, MA
    Approved building permit — Arlington, MAView PDF
    Approved building permit — Arlington, MA
    Approved building permit — Weston, MAView PDF
    Approved building permit — Weston, MA

    Greater Boston towns we serve

    • Belmont
    • Brookline
    • Cambridge
    • Needham
    • Newton
    • Waltham
    • Watertown
    • Wellesley
    • Lexington
    • Arlington
    • Dover
    • Lincoln
    • Milton
    • Natick
    • Sherborn
    • Somerville
    • Wayland
    • Weston
    • Jamaica Plain
    • West Roxbury
    • Roslindale
    • Brighton
    • South End
    • Back Bay
    • Charlestown
    • South Boston
    Chapter 05

    The Massachusetts contract checklist

    This checklist combines general contract law requirements with Massachusetts Home Improvement Contractor (HIC) regulations under M.G.L. c. 142A for projects over $1,000 at owner-occupied 1–4 family homes. Use this to ensure compliance before signing.

    Required by Massachusetts law

    • ✓Legal name, business address, and HIC registration number of the contractor
    • ✓Detailed scope of work — all materials and specifications
    • ✓Start date and completion date
    • ✓Who will obtain the building permits
    • ✓Total contract price clearly stated
    • ✓Payment schedule with dates or milestones
    • ✓Change order clause — all changes in writing, signed by both parties
    • ✓3-day right of rescission notice
    • ✓Written warranty on labor and materials (or statement that no warranty is given)
    • ✓Signatures and dates from both parties

    Best-practice add-ons we recommend

    • ✓Proof of general liability insurance
    • ✓Proof of workers' compensation insurance
    • ✓Lien release clause to protect homeowner after payment
    • ✓Cleanup and debris removal agreement
    • ✓Dispute resolution method (mediation, arbitration, or court)
    • ✓Safety and site access terms
    Chapter 06

    What will your bathroom remodel cost?

    Get a real estimate based on your property type, project size, and the upgrades you want. This calculator uses Bay State's actual base pricing for Greater Boston projects.

    Bathroom Remodeling Cost Calculator

    Three quick questions — instant estimate.

    What type of property is this?
    Approximate bathroom size?
    Project specifics — select all that apply
    Optional upgrades / premium add-ons
    Answer the questions above — your estimate appears here once your property type and size are selected.

    This estimate covers Bay State Remodeling services and labor only. Client-selected finishes — tile, vanity, countertop, plumbing fixtures, lighting — are budgeted separately during the design phase based on your preferences. We'll walk you through every selection at our showroom and our partner vendors.

    Chapter 07

    How long will your bathroom remodel take?

    Total on-site construction for a typical Greater Boston bathroom remodel is 40–45 business days. Here's how the time breaks down — and why each step matters.

    #PhaseDays
    1Demolition2 days
    2Structural framing (if load-bearing wall involved)3 days
    3Plumbing rough-in2 days
    4Electrical rough-in2 days
    5HVAC modifications1 day
    6Insulation + waterproofing (Schluter® / RedGard®)2 days
    7Drywall hanging, taping, finishing3 days
    —Rough inspections (building department wait time)5–10 days
    8Painting & wall finishes2 days
    9Tile installation — floor and wet areas5 days
    10Cabinets + countertops + trim2 days
    11Plumbing finish — fixtures & faucets2 days
    12Glass enclosure & mirrors (after tile complete)2 days
    13Accessories + electrical finish1 day
    14Site cleaning + final touches1 day
    15Final inspection & handover1 day
    Total estimated business days40–45 days

    Important: this is on-site construction only. The Design & Planning phase — measurements, selections, layout development, permits — happens before this timeline begins and typically takes 4–8 weeks depending on the complexity of your selections.

    Chapter 08Proposal

    The consultation — your first contact with Bay State

    Once you have researched your options and decided that Bay State Remodeling might be the right fit, the next step is reaching out to us. As soon as you contact our team, we schedule your consultation.

    Before we meet — the pre-consultation questionnaire

    Ahead of this meeting, you will receive a remodeling questionnaire to complete and return. This form helps us gather important details about your project — your goals, style preferences, and budget considerations — so that our consultation can be as productive and focused as possible. This is the Consultation Scheduled step in our project flow.

    The pre-consultation project questionnaire Bay State sends before the on-site visitView PDF
    The pre-consultation questionnaire we send before we meet.
    Chapter 09Design & Planning Phase

    Site Measurement & Design Consultation + Material Selection

    Step 1 — Site Measurement & Design Consultation

    The Site Measurement & Design Consultation is the first on-site visit from Bay State Remodeling. Our team visits your bathroom to gather critical information about the existing space, including layout, plumbing, electrical systems, and any structural considerations.

    During this visit we discuss your design preferences, functionality needs, and budget expectations. By seeing the space firsthand, we can better understand the scope of your bathroom remodeling project and identify potential challenges or opportunities.

    Validation is a critical part of this phase. If required, a separate Validation Assessment visit may be scheduled to assess structural elements or verify load-bearing walls. We review the information provided in your questionnaire, confirm your priorities, and align your goals with what is feasible within your budget and timeline.

    The outcome of the Site Measurement & Design Consultation is a written estimate — which clearly outlines the scope of work and projected costs. Within 2–3 business days, you will receive this estimate via email, giving you the clarity you need before moving forward.

    A sample Bay State Remodeling estimate and scope of workView PDF
    A sample estimate — how we outline scope and cost.

    Step 2 — On-Site Measuring and Take-Off

    Once you have reviewed and accepted the written estimate, the project enters the Material Selection Process. This phase has two parts: precise on-site measuring followed by the selection of all finish materials.

    Our Bay State Remodeling team schedules an on-site visit to take precise measurements of your bathroom. Accuracy is essential — it ensures every element of your bathroom remodeling project, from tile and cabinetry to fixtures and lighting, fits precisely into the design.

    During this visit we carefully measure all walls, flooring areas, plumbing locations, and electrical points. These detailed measurements allow us to prepare a comprehensive take-off for all finishes — a precise list of the materials and quantities needed across every client selection category.

    A finishes take-off — materials and quantities after on-site measuringView PDF
    A finishes take-off — materials and quantities by category.

    Step 3 — Finish Selections

    With accurate measurements in place, we move into the selection meetings. This process takes place through a series of meetings held in our sister company's Bay State Kitchen Gallery showroom, as well as in the showrooms of our trusted vendor partners. Here you will have the opportunity to explore a wide range of high-quality options across every client selection category.

    While you focus on choosing the styles and finishes that best reflect your taste, Bay State Remodeling takes full control of the Procurement process. Our team handles everything from ordering and tracking to coordinating deliveries, ensuring that all materials arrive on time and in perfect condition.

    Client Selection Categories — Bathroom Remodel

    • Tile & Stone
    • Countertops
    • Bathroom Vanities
    • Cabinet Hardware
    • Accessories
    • Plumbing Fixtures
    • Glazing & Mirrors
    • Electrical Fixtures & Devices

    Selecting at our showroom

    Many selections are made in person at our sister company’s Bay State Kitchen Gallery showroom in Waltham, where you can see real samples side by side.

    Interior of the Bay State Kitchen Gallery showroom in Waltham
    The Bay State Kitchen Gallery showroom in Waltham.

    What you will be selecting

    A bathroom remodel comes together across these finish categories — the materials and fixtures you choose during Design & Selections.

    Tile and stone selection samples
    Tile & stone
    Countertop slab and sample selections
    Countertops
    Cabinetry and vanity selection examples
    Cabinetry & vanities
    Plumbing fixture and finish selections
    Plumbing fixtures
    Cabinet hardware selections in multiple finishes
    Cabinet hardware
    Lighting and electrical fixture selections
    Lighting & electrical
    Hardware and accessory selections
    Hardware & accessories

    Procurement — ordering your selections

    Once your selections are final, we handle Procurement — placing and tracking every order. Here is an example purchase order placed after client selections are complete.

    A plumbing fixtures purchase order placed after client selectionView PDF
    A plumbing fixtures purchase order — placed after your selections are final.
    Chapter 10Design & Planning Phase

    Layout Development, Design Presentation & Summary Meeting

    Layout Development & Design Development and Presentation

    After the Material Selection Process is complete and the take-off is prepared, Bay State Remodeling moves into Layout Development. Using your measurements, your design preferences, and everything we have learned about your space, we develop a proposed layout for your review and feedback.

    Once the layout is developed, we move into Design Development & Presentation. We present you with the full design package — including renderings — so you can see exactly how your finished bathroom will look before a single nail is driven. The proposed plan includes the detailed bathroom layout, placement of fixtures, all Client Selections confirmed, and functional improvements tailored to your goals.

    During this review phase, you will have the opportunity to provide feedback and suggestions. Whether it is a small adjustment to the layout, a change in a Client Selection, or fine-tuning functionality, we collaborate closely with you to ensure the final design reflects your vision while staying within budget and timeline.

    A proposed remodel design from the Bay State design teamView PDF
    A proposed design — layout, fixtures, and finishes for your review.

    Example client feedback

    • —Change cabinet finish from wood to painted
    • —Add a floating shelf above the toilet
    • —Tile the entire sink wall, not just the three shower walls

    The Planning & Design Summary Meeting

    Once client feedback from the Design Development & Presentation has been incorporated, Bay State Remodeling prepares for the Planning & Design Summary Meeting. Before we move into the Execution Phase, we sit down with you to review the final design, your project timeline, site access, logistics, and payment schedule — and answer any questions you have. We want you to feel completely confident before we begin.

    During this meeting, we walk you through the final design layout, confirmed Client Selections, and overall scope of work so you have a complete picture of what your new bathroom will look like. At this point, your approval is essential to confirm that every detail matches your expectations before construction begins.

    In addition to reviewing the design, this meeting also covers important project logistics:

    • —How our team will access your property during construction
    • —Working hours and scheduling expectations
    • —Dust and debris control measures
    • —Communication preferences and points of contact

    Following the Planning & Design Summary Meeting, our team performs the Planning & Design Completion Gate — a thorough internal check to confirm everything is in place: all Client Selections made, design approved, Construction Documents finalized, and permits submitted. Nothing moves forward until we are certain everything is ready.

    A final approved remodel design with all selections confirmedView PDF
    The final approved design — every selection confirmed.
    Chapter 11Design & Planning → Procurement

    Permit Preparation & Submission + Payment-Triggered Ordering

    Permit Preparation & Submission

    With the final plan approved and the Planning & Design Completion Gate passed, the project moves into Permit Preparation & Submission. This is a crucial part of the process, ensuring that all work complies with local building codes, safety standards, and Massachusetts regulations.

    At Bay State Remodeling, we take full responsibility for Permit Preparation & Submission. Our team prepares and submits the required documentation, communicates with the local building department, and follows up to ensure approvals are obtained in a timely manner. By handling this on your behalf, we eliminate the stress and confusion homeowners often face when navigating these requirements on their own.

    This step also protects your investment. With proper permits in place, you can be confident that your bathroom remodeling project meets all legal and safety standards — something that is essential for both peace of mind and future resale value of your home.

    Once permits are approved, the project enters Procurement — our team initiates ordering of all selected materials through Payment-Triggered Ordering — and then moves into the Construction phase.

    Bay State Remodeling handles all Permit Preparation & Submission on your behalf. You will receive copies of all approved permits for your records.

    Copies of approved building permits for a Bay State Remodeling projectView PDF
    You receive copies of every approved permit for your records.
    Chapter 12Construction Phase

    Project Mobilization, Post-Demolition Review & Execution Phase

    Project Mobilization

    With permits approved and all Client Selections procured through Payment-Triggered Ordering, the project enters the Construction phase. Project Mobilization begins — our crew arrives to begin field work, including site preparation, protection of your home, layout and marking, and demolition.

    The Post-Demolition Review & Decision Gate

    Following demolition, Bay State Remodeling performs the Post-Demolition Review & Decision Gate — we take a close look at what has been uncovered and compare it to the agreed project scope. If anything unexpected comes up, we discuss it with you openly, present a change order if needed, and get your approval before doing anything additional. No surprises.

    The Execution Phase (Dependency-Driven)

    The Execution Phase (Dependency-Driven) then begins. Construction moves forward according to your contract and any approved change orders. Every trade and every service item is carefully sequenced — work only begins on each phase once the necessary materials and prior steps are in place.

    During the Execution Phase — what to expect

    • —Regular progress updates from your dedicated Bay State Remodeling project manager
    • —All work performed by licensed tradespeople — plumbers, electricians, HVAC technicians
    • —Rough inspections (Permits & Inspections) coordinated with the local building department at the correct milestone
    • —Site protection and Site Cleaning maintained daily to minimize disruption to your home
    • —All Client Selections procured through Payment-Triggered Ordering before each phase begins
    • —Substantial Completion Walkthrough with client when project nears completion — punch list identified
    • —Punch List Completion before Final Completion Walkthrough
    Chapter 13Completion Phase

    Final Completion Walkthrough & Project Completion

    The Final Completion Walkthrough

    Once all Punch List items are resolved, we conduct the Final Completion Walkthrough together — you and the Bay State Remodeling team — to confirm that everything meets your expectations and that your bathroom remodeling project is officially complete.

    A completed Bay State bathroom remodel in Greater Boston
    A completed Bay State bathroom — ready for the final walkthrough.

    Project Completion & Satisfaction Form

    Following the Final Completion Walkthrough, we send you a Project Completion & Satisfaction Form — a short form to share your experience and feedback. Your input means a great deal to us and helps us continue to improve.

    Review Request & Referral Request

    If you have enjoyed working with us — and we hope you will — we will also send a Review Request & Referral Request. The highest compliment you can give our team is introducing us to someone you care about.

    ★★★★★
    We are very happy with the results of our bathroom remodel with Bay State Remodeling. They delivered a high-quality remodeling job.
    Carrie N. · Google Review

    Ready to talk about your bathroom?

    Schedule a free consultation with our team. We'll visit your home, take measurements, and give you a clear written estimate within 2–3 business days.

    Schedule Your Free Consultation →Call 617-397-5158