FAMILY OWNED SINCE 1976
Roof Replacement and New Roofs in Seattle
Established in 1976 we are expert roofing contractors with 50 years of experience serving Seattle and WA
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WHY CHOOSE B&J ROOFING
Licensed Contractors. Local Experts.
You shouldn’t have to second-guess the crew on your roof. Our team shows up on time, does it right the first time, and communicates clearly at every step. B & J Roofing Inc. holds active Washington L&I contractor registration BJROOI*180NC, roofing specialty.
Where Quality equals Value
Quality and value go hand in hand when experience leads the work. With decades of hands-on roofing knowledge, we deliver solutions that perform well, last longer, and make sense for your home.
Roof Replacement in Seattle: What It Is and Why Seattle Roofs Fail
Roof replacement is a roofing service that removes the existing roof covering down to the roof deck, repairs any damaged decking, and installs a complete new roofing system: underlayment, flashing, ventilation details and the new roof covering. It differs from roof repair, which fixes one area and leaves the rest of the roof in place.
B & J Roofing Inc. replaces roofs on Seattle-area homes in composition shingle, cedar shake, metal and synthetic slate, from the first inspection and written estimate to tear-off, deck repair, installation and cleanup. This page covers the signs a Seattle roof needs replacing, the standards B & J Roofing Inc. works to, materials, permits, timeline and cost.
Roof replacement is one of four services from B & J Roofing Inc., a team of Seattle roofers working across Seattle and the Eastside.
Seattle roofs do not fail the same way roofs fail in drier cities. Expert roof services providers know that well.
The difference matters if you are trying to decide whether you need a repair, a re-roof, or a full roof replacement.
The Pacific Northwest climate is hard on roof systems in a very specific way. Seattle does not get endless freeze-thaw abuse like some inland markets, but it gets long damp seasons, heavy rain, clogged gutters, moss and algae growth, and enough dark wet months to expose weak details fast. A roof can look acceptable from the street and still be taking on moisture through aging flashing, soft decking, poor attic ventilation, or worn-out asphalt shingles.
Seattle homeowners therefore tend to get caught in the same trap. They patch once. Then patch again. Then another winter arrives, and the replacement cost is suddenly much higher because the underlying structure has been getting wetter for longer than anyone realized.
The sections below help Seattle homeowners avoid that mistake.
How Seattle's Wet Climate Affects Each Roof Type
Seattle roofs age differently because they stay wet longer.
Rain is only part of it. Moisture lingers. Debris sits in valleys and gutters. Shade slows drying. Trees drop needles. Moss builds up. Roofs that might survive much longer in a sunnier market start deteriorating here at the joints, edges, and drainage points first.
A few roof types are especially sensitive to local conditions:
- Asphalt shingles can lose granules, curl, and hold moisture if the roof stays shaded and dirty.
- Cedar shake looks right on many Northwest homes, but it demands careful roof maintenance and better ventilation discipline than people expect.
- Flat roofing systems need tighter drainage control because standing water does not correct itself.
- Low-slope membranes like TPO and PVC can perform very well, but only if the seams, penetrations, and drainage are done properly.
Moisture is also why roof cleaning matters more in Seattle than in many American cities. If you ignore moss and algae long enough, you are not just accepting cosmetic staining. You are giving moisture more time to break down the roof covering.
In B & J Roofing Inc.’s experience, roofs in western Washington last about 20 to 24 years for composition shingle, 18 to 20 years for cedar shake, and 35 to 45 years for metal.
Why Seattle Roofs Age Differently
A Seattle roof is asked to do several things at once.
A Seattle roof has to shed water reliably for months. It has to resist organic growth. It has to dry between storms. It has to handle debris load from nearby trees. On older homes, it may also be carrying earlier repairs, patched flashing, tired gutters, and materials that were never chosen with current code or weather expectations in mind.
As a result, two roofs of the same age can be in very different condition.
One may still be sound because it has decent accessibility for cleaning, strong attic ventilation, and regular upkeep. Another may be near the end because the roof size is large, the slopes are awkward, skylights interrupt drainage, and no one dealt with the slow buildup of moisture around valleys and eaves.
The first signs are often practical, not dramatic:
- Missing shingles after wind and rain
- Dark staining near roof penetrations
- Water damage in the attic
- Repeated minor leaks during storm damage events
- Persistent moss and algae on north-facing slopes
- Soggy debris packed into gutters
- Sagging or softened roof deck sections under aging materials
A Seattle roofer who works here every week usually spots those patterns quickly. A generic contractor may not.
The Signs It’s Time for a Full Replacement
A lot of roof problems are still repairable. Not all of them.
Repairable damage, such as a single leak or storm-lifted shingles, is covered on the Roof Repair Seattle WA page.
You are usually getting close to roof replacement when the system is failing in more than one place or when the real cost of preserving it no longer makes sense. A single roof repair after a storm is normal. Two or three recurring leaks in different areas are not.
Typical signs include:
- Widespread wear on asphalt shingles
- Repeated patching over several seasons
- Soft or compromised roof deck areas
- Interior water damage that keeps returning
- Multiple flashing failures
- Broad granule loss
- Moisture issues linked to poor attic ventilation
- Old low-slope sections that hold water too long
Roof inspections matter at this stage. Not a fast look from the driveway. A real inspection that checks the roof covering, drainage, deck condition, ventilation, and any linked issues around skylights, chimneys, or flat sections.
Should a 20-Year-Old Roof Be Replaced?
A 20-year-old composition shingle roof needs an inspection rather than an automatic replacement, because most western Washington roofs come up for replacement between 20 and 40 years in. A 20-year-old cedar shake roof is usually at the end of its service life. B & J Roofing Inc. inspects the roof covering, deck and flashing and tells the homeowner whether repair or replacement makes sense.
Five Standards B & J Roofing Inc. Meets on Every Seattle Roof Replacement
For Seattle homeowners, the right roofing contractor needs more than a sales team and a website. B & J Roofing Inc. meets five standards that matter in this market.
Licensing and insurance.
First, licensing and insurance basics. Any serious contractor should be able to show they are licensed, bonded, and insured.
B & J Roofing Inc. holds active Washington L&I registration BJROOI*180NC, roofing specialty, and carries $1,000,000 in general liability insurance on file with L&I. Homeowners can check both on the Verify a Contractor lookup.
Local experience.
Second, local experience. Seattle roof replacement work is different from dry-climate roof installation. You want a company that understands long wet seasons, debris load, and how local materials actually age.
B & J Roofing Inc. has roofed homes in Seattle and the Eastside since 1976, working from its base in Redmond.
Manufacturer credentials.
Third, manufacturer credentials. Public references to GAF, CertainTeed, or Owens Corning matter because they usually point to training, product familiarity, and access to stronger warranty systems.
Warranty transparency.
Fourth, warranty transparency. Workmanship warranties and manufacturer warranties are not the same thing, and a good contractor should explain the difference without making you ask twice.
B & J Roofing Inc. gives a written workmanship warranty of 10 years, depending on the project.
Service discipline.
Fifth, service discipline. That includes cleanup, communication, inspection quality, scheduling realism, and whether the company handles details like gutters, ventilation, and permit questions rather than acting as if those are someone else’s problem.
Every B & J Roofing Inc. replacement starts with an on-site inspection and a written estimate. B & J Roofing Inc. handles the permit as part of the job: the application, the fee and the final inspection paperwork.
Choosing a Roofing Material for a Seattle Roof Replacement
Choosing the right roofing material in Seattle is not a style choice first. It is a moisture-management choice first.
Asphalt shingles are still the most common option because they are cost-effective, widely available, and familiar to most contractors. Metal roofing costs more upfront, but it sheds water well, handles moss and algae better, and can outlast multiple shingle cycles if installed properly. Cedar shake looks right on certain homes, but it asks more from maintenance and ventilation than many owners expect. For lower-slope sections, TPO or PVC may be more appropriate than forcing a conventional system onto a difficult surface.
The wrong choice is usually not the most expensive one. It is the one that does not match the roof design, slope, drainage pattern, and maintenance reality.
B & J Roofing Inc. installs composition shingle, cedar shake, metal and synthetic slate roofs. Metal roof options are covered on the Metal Roofing Seattle WA page.
How a B & J Roofing Inc. Roof Replacement Works
A B & J Roofing Inc. roof replacement runs in four steps, from inspection to final walkthrough.
- Inspection. A B & J Roofing Inc. estimator checks the roof covering, flashing, roof deck, attic ventilation, gutters and drainage.
- Written quote. B & J Roofing Inc. sends a written quote that lists the scope, the materials, the price and any deck or flashing repairs found during the inspection.
- Tear-off and installation. The crew removes the old roof down to the deck, replaces damaged sheathing, then installs underlayment, flashing and the new roof covering. The site is cleaned at the end of every working day.
- Final walkthrough. B & J Roofing Inc. reviews the finished roof with the homeowner, including what was found during tear-off and what the workmanship warranty covers.
Do You Need a Permit to Replace a Roof in Seattle?
Seattle permit rules depend on building type and scope. Seattle’s Department of Construction and Inspections says detached one- and two-family houses often do not need a permit for certain roof-only work, while broader re-roofing and commercial or multifamily work can trigger permit requirements. The practical takeaway is simple: do not guess. Ask your contractor to confirm the permit path with SDCI before work starts. (seattle.gov)
Confirming the permit path matters more if your project includes:
- Tear-off down to the roof deck
- Insulation or sheathing changes
- Significant structural repair
- Commercial roofing scope
- Skylight work
- Low-slope membrane replacement
Can New Shingles Go Over Old Shingles in Seattle?
No. B & J Roofing Inc. always tears off the old roof down to the deck. Tear-off lets the crew inspect and repair the deck and flashing before the new roof goes on.
How Long Does a Roof Replacement Take in Seattle?
Most B & J Roofing Inc. roof replacements take two to four working days on site once materials arrive. Jobs are typically scheduled two to four weeks out in spring and summer, and one to three weeks out in fall and winter.
In Seattle, weather affects schedule more than the brochure usually admits.
A straightforward residential roofing project can sometimes move quickly once work starts, but the true timeline depends on roof size, pitch, accessibility, weather windows, and whether hidden deck repairs appear after tear-off. A small re-roof on a simple house is very different from a multi-slope home with skylights, chimneys, and a mix of materials.
The right question is not “How many days?” It is “How will you manage weather interruptions, exposed areas, and material staging if conditions turn mid-project?”
How Much Does a Roof Replacement Cost in Seattle?
Roof replacement cost in Seattle varies widely because the variables are real.
Most full roof replacements B & J Roofing Inc. quotes in the Seattle area cost between $15,000 and $45,000.
The biggest price drivers are usually:
- Roof size
- Pitch and complexity
- Tear-off layers
- Skylights and chimney detail
- Material choice
- Water damage or decking repair
- Permit and code requirements
- Difficult accessibility
When tear-off reveals rotten or soft decking, the damaged sheathing is replaced before the new roof goes on, and B & J Roofing Inc. tells the homeowner before the extra work changes the price.
Those price drivers are why two roof estimate numbers for the “same” house can be far apart and both still be honest.
What Else Do Seattle Homeowners Ask About Roof Replacement?
What Does the B & J Roofing Inc. Workmanship Warranty Cover?
The B & J Roofing Inc. workmanship warranty covers how the roof was installed for 10 to 20 years, depending on the project, while the manufacturer’s warranty covers the materials.
Is There a Cheaper Time of Year to Replace a Roof in Seattle?
There is no magic cheap month for Seattle re-roofing.
You may find scheduling slightly easier in the shoulder seasons, but replacement cost is driven much more by scope, materials, labor demand, and hidden conditions than by trying to outsmart the calendar. Seattle homeowners sometimes wait too long chasing a better deal and end up paying more because another wet season created extra deck damage.
How to Vet Your Contractor: A Checklist for Homeowners
Before signing anything with roofing companies, ask direct questions.
| Question to ask | B & J Roofing Inc.'s answer |
|---|---|
| Are you licensed, bonded, and insured? | Yes. Washington L&I registration BJROOI*180NC, roofing specialty, with $1,000,000 general liability insurance on file with L&I. |
| Will you confirm permit requirements with Seattle if needed? | B & J Roofing Inc. handles the permit as part of the job: the application, the fee and the final inspection paperwork. |
| What do your workmanship warranties actually cover? | How the roof was installed, for 10 to 20 years, depending on the project. |
| Which manufacturer warranties apply to this roofing material? | Each roofing material carries its manufacturer's own warranty. |
| Will you inspect attic ventilation as part of the job? | Yes. Every inspection checks attic ventilation along with the roof covering, flashing, deck, gutters and drainage. |
| What happens if the tear-off reveals rot or a compromised roof deck? | The damaged sheathing is replaced before the new roof goes on, and B & J Roofing Inc. tells the homeowner before the extra work changes the price. |
| How will you protect landscaping, driveways, and gutters during the work? | The crew covers landscaping with tarps, protects the driveway and gutters, and runs a magnetic sweep for nails. The site is cleaned at the end of every working day. |
| Do you provide financing options if the scope expands? | Yes. B & J Roofing Inc. offers roof financing through Hearth. |
Lien release matters too: ask about it. If subcontractors or suppliers are involved, you want documentation showing payment has been handled properly so nobody can come after the homeowner later.
How to Protect a New Roof After Installation
A new roof is not a “set it and forget it” purchase in Seattle.
You protect it by keeping gutters clear, addressing moss and algae early, booking periodic roof inspections, and paying attention after major storm damage. You also protect it by understanding the warranty terms. Manufacturer warranties and workmanship warranties do different jobs. One covers product defects. The other covers how the roof installation was performed. If a contractor cannot explain that clearly, keep asking until they can.
B & J Roofing Inc.’s workmanship warranty runs 10 to 20 years, depending on the project.
Seattle roofs fail slowly until they do not. In Seattle, the right roof replacement decision is not just about picking a brand or chasing the cheapest quote.
The right decision is about choosing a Seattle roofer who understands what this climate does to roofs, how local homes age, and where shortcuts usually come back to punish the owner later.
Does B & J Roofing Inc. Offer Roof Financing?
Yes. B & J Roofing Inc. offers roof financing through Hearth, and homeowners can check pre-qualified rates online before committing. Final rates and terms come from Hearth’s lenders and depend on credit approval.
How It Works
We Make It Easy to Get the Roof You Need
Schedule a Free Estimate
We’ll visit your home, assess your roof, and give you a clear, honest quote.
Choose Your Roofing Solution
We’ll guide you through options and help you select the best roof for your home and budget.
Relax Under a Roof Built to Last
Relax under a roof built to last. Reliable installation, no mess, no stress.
Trusted by homeowners like you
What People Are Saying About B&J Roofing
Real stories from customers who felt confident, cared for, and covered from day one.
“Thanks so much for the beautiful job. Your workers were polite, hardworking, and exceptionally neat. We have received several compliment’s on its appearance and I have passed your name to several neighbors.”
“I would like to compliment you on the outstanding job and would be happy to have you use my name as a reference to future customers.”
“The B&J crew did a wonderful job roofing our home and I would recommend your company to anyone!”
More homeowner feedback is on the Roof Replacement Reviews page.
Trusted by Homeowners Across Seattle's East Side
Families and Builders Rely on B&J Roofing
From residential homes to commercial properties, we’ve delivered dependable roofing that stands the test of time. Get a quote today.
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