
Additions · Chehalis, WA
Home Addition Contractor in Chehalis, WA
Home Additions in Chehalis. Work directly with Greg — call, text or get a free estimate.
Chehalis, Lewis County and every town within 100 miles of Rainier
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Home Additions · Chehalis
Home Additions in Chehalis
Looking for a home addition contractor in Chehalis? Greg Myers Construction is based in Rainier, about 20 miles away, and Chehalis is part of Greg's regular service area. He handles room additions, primary suites and second-story additions.
In the river valleys and farm country, a good building site is one that stays dry — set above the low ground, with the water steered away from the foundation before anything goes up. The hard part is making the new section look and work like it was always there, inside and out.
One customer hired Greg for an addition to an existing structure: “He is a quality person to deal with and does excellent work. I would recommend him to anyone.”

What's included
Home Additions we do in Chehalis
- 01
Room and bedroom additions
A new bedroom, office or family room off the side or back of the house, sized and placed for how you live.
- 02
Primary suite additions
A bedroom with its own bathroom and closet, often the most wanted addition in a house with one shared bath.
- 03
Second-story additions
Building up instead of out when the lot is tight, with the existing walls and foundation checked for the added load.
- 04
Kitchen and great-room bump-outs
Pushing out an exterior wall to give a cramped kitchen or living room the room it needs.
- 05
Foundation and site work
Excavation, footings and a concrete foundation or crawlspace done in-house, with drainage planned for wet ground.
- 06
Matched roof, siding and windows
The new roof ties into the old one and the siding, trim and windows match, so the addition reads as part of the house.
Lewis County, WA
Home Additions around Chehalis
Greg works all over Chehalis — near Hillside Historic District, Pennsylvania Avenue–West Side Historic District and John Dobson Park and out by McFadden Park and Newaukum Hill — and throughout Lewis County.
Chehalis is the Lewis County seat, just south of Centralia along I-5 and the Chehalis River. Chehalis is about 20 miles southwest of our base in Rainier, well inside our 100-mile service area.
Western Washington buildings fight water more than anything — months of rain, moss on the roof, rot wherever wood stays wet, and soils that hold moisture. A building lasts when it sits on a proper foundation with drainage around it, is wrapped and flashed right, and is built to dry out.
Ideas for your project
Home Additions: what it can look like
How it works
How your Chehalis addition job works
- 1
Free on-site estimate
Greg looks at the house, the lot and where an addition could go, talks through what you need, and gives you a free estimate.
- 2
Design, drawings and permits
We work out the plan, prepare the drawings and handle the permit, including setback, septic and drainage questions on rural lots.
- 3
Foundation, framing and dry-in
We dig and pour the foundation, frame the walls and roof, and get the addition roofed and wrapped before the weather turns.
- 4
Tie-in, finish and walkthrough
We open into the existing house, finish the inside to match, clean up, and walk the new space with you.
Customer reviews
What customers say about Greg
“He is a quality person to deal with and does excellent work. I would recommend him to anyone.”
Don B.
An addition to an existing structure · HomeAdvisor review
“He is a man of integrity. He does what he says and says what a does.”
Tom W.
A project with Greg · HomeAdvisor review
“He does good work.”
Bill
A project with Greg · HomeAdvisor review
Questions
Home Additions in Chehalis: FAQs
Do you do home additions in Chehalis, WA?
Yes. Chehalis is about 20 miles southwest of our base in Rainier, well inside our 100-mile service area. Greg handles room additions, primary suites and second-story additions there, and the estimate is free.
Do I need a permit for home additions in Chehalis?
It depends on the project. When one is needed, Greg pulls the permit from the City of Chehalis's building department and builds to whatever the permit and inspection require.
Will the addition match my house?
That is the goal on every addition. We match the roof pitch, siding, trim and windows where those materials are still available, and choose something that complements the house where they are not.
How much does a home addition cost?
It depends mostly on size, whether it is a ground-level or second-story addition, and what goes inside it, since bathrooms and kitchens take more work per square foot than bedrooms. Site conditions, the foundation and how much of the existing house has to change also play in. Greg prices each addition after a free on-site visit.
Does Western Washington weather or soil affect an addition?
Both do. Clay and glacial till soils drain poorly and high water tables are common, so footing drains and grading away from the house matter. The rainy season also shapes the schedule, so we aim to get the frame roofed and wrapped quickly to keep the inside dry.
Is it better to build up or out?
Building out is usually simpler when you have the yard, and the rest of the house stays livable during the work. Building up makes sense on a tight lot or when you want to keep the yard, but the existing foundation and walls have to be checked for the extra weight. Greg will look at both options at the estimate.
More in Chehalis
Other services in Chehalis

Barndominiums
Barndominiums, barn homes and shop houses.
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Pole Barns & Post-Frame Buildings
Pole barns, post-frame shops, lean-tos and equipment buildings.
See pole barns & post-frame buildings
ADUs, Guest Houses & Shops with Living Quarters
ADUs, backyard cottages, guest houses and shops with living quarters.
See adus, guest houses & shops with living quarters
Custom Homes
Custom homes, lodge-style homes and craftsman builds.
See custom homes
New Home Construction (Build on Your Land)
New homes on your land, ramblers and two-story homes.
See new home construction (build on your land)
Home Remodeling
Whole-house remodels, opened-up layouts, flooring and finish carpentry.
See home remodeling
Kitchen Remodeling
Kitchen remodels, new islands, cabinets, tile and opened-up layouts.
See kitchen remodeling
Bathroom Remodeling
Bathroom remodels, tile showers, tub surrounds and new vanities.
See bathroom remodeling
Garage Conversions
Garage conversions into bedrooms, offices, family rooms and in-law suites.
See garage conversions
Decks
Decks, composite decks, deck stairs and covered decks.
See decks
Siding
Siding replacement, siding repair and board-and-batten or cedar exteriors.
See siding
Metal Roofing
Metal roofs on homes, barns, shops and pole buildings.
See metal roofing
Window Replacement
Replacement windows, new window openings and sill repair.
See window replacement
Fencing
Wood privacy fences, farm and horse fencing and gates.
See fencing
Retaining Walls
Block, concrete and rock retaining walls.
See retaining walls
Concrete Work
Slab foundations, shop floors, driveways, patios and concrete repair.
See concrete work
Concrete Driveways
New concrete driveways, garage aprons and driveway replacements.
See concrete driveways
Foundation Repair
Foundation crack repair, settled footings and crawlspace post and beam repair.
See foundation repair
Excavation & Site Prep
Land clearing, grading, building pads and drainage.
See excavation & site prep

Ready to start your Chehalis addition project?
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