NEW CONSTRUCTION
New Construction Roofing for Residential, Commercial and Industrial Builds
Roofing for new builds and additions across the Greater Eastside, in every material we install, on the builder’s schedule.
Top Line works as the roofing contractor on new construction across the Greater Eastside and the Puget Sound region — single-family homes and custom builds, commercial buildings, and industrial facilities. We also handle the roof on additions, dormers, ADUs, garages and shops, which is where a lot of new-construction roofing actually happens on an established Eastside lot.
Working from the plans, not around them
On a new build the roof is designed before it is installed. We read the plans, flag the details that will cause problems later — valley geometry that concentrates water, a low-slope section drawn as if it were pitched, ventilation that will not balance once the insulation goes in — and we raise them while they are still drawings rather than after the framing is up.
WHO WE BUILD FOR
Residential, commercial and industrial builds
The same crew and the same standard, scaled to the building.
Residential new construction
Custom homes, spec homes, ADUs, additions, dormers, garages and shops. Complex roof geometry is normal on Eastside custom work, and every intersection is a flashing detail that has to be built rather than improvised.
Commercial new construction
Offices, retail, multi-family, mixed use. Mostly low-slope membrane with rooftop equipment, drains, scuppers and curbs, coordinated with the mechanical trades before the membrane goes down.
Industrial new construction
Warehouses, shops and production facilities. Large-span metal panel and membrane systems, high penetration counts, and a deck that has to stay watertight over a building where downtime is expensive.
MATERIALS
All five roof systems, specified to the building
On a new build you get to choose the roof rather than inherit it. Here is what we install and what each one is actually good at.
PREMIUM MATERIALS ONLY
Premium material only — on every job, in every service
On a new build nobody sees what went under the roof. That is exactly why it is worth specifying properly.
Premium products, not builder grade
Builder-grade is the default on most new construction because it is the cheapest line on the bid. We quote the premium tier instead — heavier gauge, better underlayment, better sealants and fasteners, manufacturer-approved components throughout.
Installed the way the manufacturer specifies
Material warranties are conditional on installation. Fastener pattern, flashing detail, ventilation, underlayment coverage — get one wrong and the coverage behind the product is compromised.
The same standard on every service
Roofing, gutters, repairs, cleaning — there is no cheaper line of work where the standard quietly drops. Same crew, same materials policy, same details, on a forty-square commercial deck or one dormer.
OUR PROCESS
How a new-construction roof runs
Four steps, no mystery. The builder and the owner both know what happens next.
01
Plan review and quote
We price from the drawings, flag the details that will cause problems, and give you one written scope with the materials named. No allowances that get revised later.
02
Scheduled to the build
We coordinate with the general contractor so the roof goes on when the framing is ready, not two weeks after. Drying the building in is the gate everything else waits behind.
03
Installation and coordination
Penetrations, curbs and equipment coordinated with the mechanical and solar trades before the roof closes, so nothing gets cut in afterwards.
04
Final inspection and handover
Walkthrough with the builder and the owner, warranty documentation handed over, site cleaned and magnet-swept before we leave.
NEW CONSTRUCTION FAQ
New construction questions
Yes. We work as the roofing subcontractor on residential, commercial and industrial builds, and we also work directly for owners on additions, ADUs and outbuildings where there is no GC involved.
It depends on the roof geometry, the structure, the building’s use and how long the owner intends to hold it. We will price more than one option on the same drawings so the comparison is real rather than theoretical.
Yes — multiple planes, dormers, skylights, and low-slope sections meeting pitched roofs are normal on Eastside custom work. Complexity lives in the flashing detail, and that is the part we build rather than improvise.
Yes, seamless aluminum formed on site and sized to the actual roof area draining into each run. Doing the roof and the gutters together means the roof edge, the fascia and the drainage are detailed as one system.
Get a free inspection and an honest quote
We get on your roof, photograph what we find, and tell you whether you are looking at a repair, a cleaning or a replacement. No charge and no pressure.
Premium materials only, on every job — installed to the manufacturer specification so the warranty stays intact.
Licensed and insured Washington roofing contractor serving the Greater Eastside and the Puget Sound region.
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Greater Eastside, WA
Eastside · Snoqualmie Valley · Seattle metro
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24/7 emergency roof repair
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WA Contractor Registration TOPLILR822NG · WA UBI 604-316-316 · Licensed, bonded & insured