Solid work starts at the cornerstone — a Lynden builder for the whole job.
A&A Cornerstone Builders is a licensed and bonded Washington general contractor working out of Lynden. Construction, remodeling and repair work across Whatcom County — run by Adonay Fuentes Membreno, whose name is on the license and on the work. Tell us what you're planning and we'll come take a look.
From the first repair to the full remodel.
General construction the way a small Whatcom County outfit does it best — one builder responsible for the whole result. Describe your project and we'll tell you straight whether it's our kind of work.
Remodeling
Interior and exterior remodeling under one licensed contractor — from a single room that needs rethinking to a whole-house project with one schedule and one standard.
Repairs & restoration
The broken, worn and weather-beaten parts of a house, fixed properly — repair work sized honestly, whether it's an afternoon or a full week.
Additions & new construction
New square footage built from the ground up — framed, sheathed and finished by the same crew, on a written scope you approved first.
Finish & carpentry work
The visible last ten percent that makes the job look like it was always part of the house — trim, doors, surfaces and details.
Exterior work
The weather side of the house — the repairs and rebuilds that keep a Whatcom County home standing against a Whatcom County winter.
General contracting
One point of contact who owns the schedule, the subs and the result — so the project you agreed to is the project that happens.
Three steps between you and the finished job.
No mystery — a look at the actual project, a clear scope, and the build.
Walk-through
We come out and look at the real thing — not photos of it — and talk through what you want and what it will take.
Scope and schedule
You get a clear picture of what's being done and when it lands on the calendar — so there are no surprises between the handshake and the finish.
The build and the final walk
The work gets done, the site stays clean, and the job finishes with a walk-through with you — done means you've seen it and said so.
A Lynden company with its license on the wall and its owner on the job.
A&A Cornerstone Builders LLC works out of Lynden, Washington and serves all of Whatcom County. Adonay Fuentes Membreno runs the company and the work — when you call, you're talking to the builder.
The company is a licensed Washington general contractor — license CORNECB746K6, active through May 2028, bonded and insured as the state requires. That record is public: look it up at lni.wa.gov, and look up everyone else bidding on your property while you're at it. You're entitled to know who you're letting onto your place.
Tell us what you're planning.
A remodel, a repair, an addition — or something you're not sure how to name yet. Describe it and we'll come take a look. Lynden, Ferndale, Bellingham and all of Whatcom County.