Mercer Island · premium · design-led install
Waterfront view homes, mid-century remodels, contemporary new-builds — Mercer Island installs ask more of the design conversation. We bring it.
Three Mercer Island install rooms
Mercer Island homes range from 1960s mid-century moderns on the south end to lakefront new-builds on the north end to the large contemporary estates along the eastern shoreline. The install conversation starts with which one you have.
A wide linear unit on the wall perpendicular to the lake view — the fireplace becomes part of the room’s view composition rather than competing with it. Heat & Glo Crave or Napoleon Luxuria on a book-matched marble or honed limestone surround with no mantel shelf. The termination cap position is managed around the view from the water and neighboring sightlines.
The south end of Mercer Island has a significant inventory of 1960s and 1970s mid-century homes with original masonry fireplaces. A gas insert conversion keeps the original firebox opening while the surround and mantel design gets a full reset — minimal blackened-steel face, floating walnut shelf, tile surround that speaks to the original architecture rather than overwriting it.
The large contemporary homes on the north end and eastern ridge often have no existing fireplace — new-build direct-vent installation in an interior wall with a new dedicated chase to reach an exterior termination point. Design scope covers the full wall: fireplace, built-in cabinetry, display niching, and the material transition from the fireplace surround to the wall treatment beyond.
The Mercer Island permit workflow
The City of Mercer Island has its own Development Services department, its own permit fee schedule, and its own inspection process — separate from Bellevue or King County unincorporated. Every gas fireplace installation on Mercer Island requires the City’s mechanical and gas piping permits. Prime pulls from the correct jurisdiction for every project.
Mechanical permit
City of Mercer Island Development Services — covers the appliance, venting assembly, and clearances. Fee schedule published at mercergov.org.
Gas piping permit
Separate permit for the gas supply connection. Pressure-tested before the gas line goes live. Required for every new gas appliance connection regardless of whether the main gas line is already in the home.
Shoreline and critical areas review
Properties within 200 feet of the Lake Washington shoreline may be subject to critical areas review for exterior modifications. This includes direct-vent sidewall penetrations visible from the water. We confirm applicability before quoting; the review timeline is factored into the project schedule when required.
Washington L&I sticker
State Labor & Industries sticker required on every new gas appliance — a Washington State requirement on top of the City permit regardless of jurisdiction. Required at inspection.
Match the install to the home
Mercer Island’s housing stock spans six decades and three distinct design vocabularies. The install that’s right for each era starts with understanding what the house already has, what the room needs, and what the view requires.
Island Crest, south end
1960s–1980s mid-century
Original masonry fireplaces are common — brick, occasionally stone. The design vocabulary is horizontal and minimal. A gas insert with a new blackened-steel surround and floating shelf resets the fireplace wall without overwriting the house’s design intent. These projects often involve the most dramatic before/after transformation.
Mercerdale, East Mercer
1990s–2010 traditional
A mix of masonry and factory-built prefab, often with full-surround millwork from original construction. Conversions here tend toward replacement of the surround as much as the firebox — updating from a builder-grade 1990s mantel to something that suits the room as it’s evolved.
North end, lakefront new-builds
Post-2010 contemporary
New construction on Mercer Island increasingly has no existing fireplace. New-build direct-vent or linear installs in great rooms, often with full built-in millwork. View-preservation and shoreline review are part of these projects; design scope is at its largest.
Google reviews
“The technician found a minor problem that I would have overlooked during a chimney inspection. He gave me straightforward repair options and a clear explanation without putting any pressure on me.”
Kathleen Kimura
Verified Google review
“We noticed some cracks in the chimney and weren't sure how serious they were, but they carefully inspected everything and only recommended the repairs that were actually needed. The whole process was smooth and well-organized, and the chimney now looks solid and secure again.”
Emanuel Leavitt
Verified Google review
“I'm really impressed with the service we received for our new pellet stove installation. Everything was done carefully to spec, and they took the time to clearly explain the safety steps, which made us feel confident using it.”
Bruce Cropper
Verified Google review
“The technician spotted minor damage to my chimney crown that I hadn't noticed and quickly took care of it. He explained the repair options clearly and made sure everything was solid, which I really appreciated for his honesty and skill.”
Jean Hill
Verified Google review
“Prime Chimney was suggested by a neighbor, and I now see why. They were easy to book, arrived on time, and completed a thorough job. The technician was courteous and left no mess. Our chimney is clean, safe, and ready for the colder months. Wonderful local enterprise!”
Manuel Laporte
Verified Google review
Common questions
Next steps
Wide-format contemporary fireplaces — the dominant format in Mercer Island new-build installs.
Four material paths — from painted shaker to book-matched marble. Where the design decision actually lives.
The four cost drivers for any gas fireplace project on the Eastside — including Mercer Island premium surround scope.
Free in-room walkthrough · Mercer Island
We come to your Mercer Island home, look at the wall, the view, and the design intent, confirm the permit and review requirements, and put together a fixed written estimate with every line item.