Redmond · Seattle · The Eastside
A better roof.
A home well protected.
Roofing, gutters and water-damage repairs from a local team serving Seattle, the Eastside and King County since 2016.
Tell us about your project
Request a free estimate. We’ll follow up to discuss your project and arrange a visit.
Real work. Ideas for your home.
Browse our project photos and a clearly labeled metal-roof design concept for inspiration.
Seattle, WA — Flat Roof Replacement
TPO Membrane
Fire Damage Restoration
Siding + Repair
Chimney Cap Restoration
Chimney + Flashing
Design inspiration
The look of standing-seam metal
AI-generated design illustration.
Explore metal roofing →Explore Completed Roofing Projects →
Know what comes next.
Tell us about your home
Choose your service and share your property address. We’ll follow up to understand what you need.
Review your options
We inspect the project and explain the scope, materials and written estimate so you can make an informed decision.
Plan the work together
Review scheduling, payment and warranty terms before moving forward. Ask us any questions along the way.
The people behind the work
Meet Wilson Massambani.
Wilson founded Mass & Mass in 2016, starting with roof cleaning and maintenance across the Eastside. Working on local roofs showed how small problems can develop into leaks, damaged decking and early replacements.
That experience guides our approach today: understand the issue, explain the work and agree on a written scope for your home.
Choose a time for your estimate
Choose an available visit time below. Standard estimates are free; same-day appointments have a $100 priority fee, shown before payment. We’ll follow up on your request to confirm the details.
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Request an estimate instead or call (425) 435-5800 and we’ll help arrange a time.
Your Details
Booking update
Need help confirming your appointment? Call (425) 435-5800.
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Local experience. Clear expectations.
A home project is a big decision. Get a clear scope, practical options and a team you can reach throughout the work.
A Pacific Northwest Team
Based in Redmond and serving Seattle and the Eastside, our team works with the wet weather, roof types and exterior details found in local homes.
Written Warranty Terms
Review the material and workmanship coverage, exclusions, registration requirements and any additional cost in your written proposal.
CertainTeed ShingleMaster™
CertainTeed ShingleMaster™ credentialed contractor since 2018 — trained and approved to install CertainTeed roofing systems. Review the selected system and written warranty terms with your proposal.
Transparent Pricing
Review your project scope, material choices and pricing in a written proposal. If we uncover additional work, discuss the options before approving a change.
Help With Active Leaks
Call (425) 435-5800 to discuss an active leak or storm damage. We’ll review the situation and current availability with you.
Photo Documentation
Project photos help explain what we find and the work being completed. Browse our real before-and-after projects to see the details.
Roofing and repairs, inside and out.
From the roof and siding to damaged drywall and the finishing coat of paint — discuss the whole repair with one team.
Roof Replacement
Complete tear-off and installation with premium CertainTeed materials.
Roof Repair
Fast fixes for leaks, storm damage, and emergency situations.
Water-Damage Repairs
Roofing, siding, drywall and painting — a coordinated repair for your home.
Free Inspection
Comprehensive assessment with drone photos and honest recommendations.
Moss Removal
Professional cleaning that extends your roof's life by years.
Gutter Replacement
Seamless gutters and downspouts built for PNW rain.
Siding
Vinyl, fiber cement, and wood — durable and beautiful.
Exterior Painting
Premium paints applied by skilled crews who prep properly.
Commercial Roofing
Flat, TPO, and metal solutions for businesses.
Don't Take Our Word For It
140+ reviews across Google, Angi/HomeAdvisor, Yelp and BBB. The summaries below link to the original customer reviews.
Prompt response, a quick project bid and timely completion of asphalt-shingle roof repairs.
Roof replacement with responsive communication and a crew that completed the installation in a day.
Roof and exterior cleaning that exceeded the customer’s expectations.
See more Mass & Mass customer reviews and platform profiles before choosing a contractor.
Review Your
Project Terms
Before approving work, review the scope, selected materials, applicable coverage and exclusions in your written proposal.
Written Warranty Terms
Ask who provides material and workmanship coverage, what is excluded, and whether any additional cost or registration applies.
Premium Materials Only
CertainTeed, GAF — we only install what we'd put on our own homes.
Factory-Trained Installers
Mass & Mass holds the CertainTeed ShingleMaster installer credential. Coverage depends on the selected system and written terms.
Financing Available
Flexible payment options. Protect your home now, pay over time.
EPA Lead-Safe Certified
Certified to safely renovate pre-1978 homes with lead paint. Firm #NAT-F310484-1.
Project Walkthrough
Review completed work, raise questions and keep the agreed scope and applicable warranty documents with your project records.
Everything You Need to Know
Timing depends on the roof size, system, existing condition and weather. We discuss the expected schedule, property protection and any changes with you during planning.
Ask about available financing options when you request your estimate. Financing is subject to lender approval and current terms. Review the rate, fees, repayment period and total cost before accepting an offer.
Future-date estimate appointments are free, with no obligation. A $100 priority fee applies if you choose an available same-day estimate appointment. We review your roof, explain our findings and discuss the next step before you approve work.
Mass & Mass holds the CertainTeed ShingleMaster installer credential. Warranty eligibility and coverage depend on the selected system and written terms. Review material and workmanship coverage, exclusions, registration requirements, and any additional cost with your proposal.
We can document visible damage and provide a written repair scope for your insurer to review. Your insurer determines coverage and claim approval under your policy.
We serve the entire greater Seattle area including Kirkland, Bellevue, Redmond, Renton, Sammamish, Issaquah, Mercer Island, Newcastle, Woodinville, Snohomish, Tacoma, and surrounding communities throughout King County and beyond.
Roofing Answers, Before You Call
Straight guidance on cost, timing and whether you actually need a new roof.
Roof Replacement Cost in Seattle
What a new roof actually costs here, broken down by material and by what drives your quote up or down.
10 Signs You Need a New Roof
The warning signs Pacific Northwest homeowners see first — moss, leaks, sagging and missing shingles.
Repair or Replace?
How to decide between a repair and a full replacement, and the threshold where repairing stops paying off.
Let’s take care of your home.
Roofing, gutters and water-damage repairs — start with a free estimate and a conversation about your project.