Built and installed by Star Construction WA — Washington State Licensed Contractor #STARCCW791L5, bonded and insured. Authorized Lumon dealer serving Issaquah, Sammamish and the eastside.

We build sunrooms and install Lumon balcony glazing for people who actually live with Issaquah weather. If your deck faces Squak Mountain or Tiger Mountain, you already know the deal: it rains, then it pours, then the sun comes out for an hour and you wish you’d been sitting outside for it. A glass enclosure gets you that hour back, and most of the months you currently write off.
For homes, that usually means closing in a deck so the family can use it from October through May, or turning a covered patio off the back of a Highlands house into a three-season room. For condos and townhomes near downtown Issaquah and along the I-90 corridor, it means glazing in a balcony with Lumon’s retractable panels so the unit gains real, usable square footage. For local businesses — the breweries and restaurants off Front Street, hotels near the Highlands, multi-family buildings in Klahanie — the same system keeps outdoor space open far longer in the year.
The glass itself is Lumon’s frameless retractable system: the same setup running on a million-plus balconies across Canada and Northern Europe, in climates every bit as wet as ours. We’re a licensed Washington contractor (L&I bonded and insured), we pull the City of Issaquah and King County permits ourselves, and the first visit to your place is free. Most quotes go out within a week.

A sunroom is the room people end up using more than they expected. Morning coffee when it’s gray out. Somewhere to put the plants that don’t survive an Issaquah winter on the open deck. A spot to watch the rain come down off the mountain without wearing a jacket to do it. Good design and good glass turn it into part of the house instead of a porch you tolerate.
Lumon’s frameless retractable glass turns a deck or patio into a room you can use most of the year. Slide the panels all the way open in July for an open-air deck; close them in October to keep the rain and the wind off. It’s single-pane tempered safety glass with small 2 to 3 mm gaps between panels on purpose, so the space breathes and doesn’t trap the damp that ruins cheaper enclosures around here.
REQUEST A FREE QUOTEThese are three-season rooms by design, but Issaquah winters are mild enough that most of our clients keep using the space deep into the cold months. A patio heater or an electric fireplace covers the coldest stretches. Lumon suggests an infrared heater or a thermal rug if you want to push it further. You won’t get July temperatures in January without a heat source, but you’ll get a lot more usable evenings than a screened porch ever gave you.
REQUEST A FREE QUOTEMost of our home projects in Issaquah take one of three shapes. A deck enclosure, where you want to keep the view of the greenbelt but stop losing the deck for half the year. A full sunroom addition off the back of the house, often replacing a tired screened porch. Or a condo or townhome balcony glazed in with Lumon panels so you finally get to use it.
The build is the easy part. The design decisions are where the first visit goes. A south-facing lot up in the Issaquah Highlands wants different glazing than a shaded place backing onto Squak Mountain. A Sammamish project with a hot tub needs more ventilation than a simple three-season room in Klahanie. We come out, look at how the sun actually hits your space, and pick the panel layout that fits how you plan to use it — not a one-size template.
Commercial work is where the Lumon system pays for itself. Restaurants and taprooms around downtown Issaquah have used it to keep patio seating earning money through the wet months instead of tarping it over. Hotels near the Highlands have glazed whole stacks of guest balconies in a single off-season. Apartment and condo buildings around Klahanie and the I-90 corridor use it to upgrade balconies without tearing anything out, because the panels go in from inside the rail and tenants barely notice.
We handle the permits, the L&I paperwork, and the back-and-forth with your property manager or GC. Most of the commercial jobs we’ve done lately have been phased — a few units at a time, on a schedule the building can actually live with.
Lumon is a Finnish company that’s been making retractable balcony glass since 1978 — more than 45 years on the same system. They’ve got over a million installs worldwide, a lot of them in places wetter than Issaquah. That matters, because Pacific Northwest moisture is the number one reason cheap enclosures fail here. Trapped condensation rots the framing out within a decade. Lumon panels are frameless on three sides and slide open in seconds, so the space airs out like a screened porch but seals up tight against the weather when you close it.
Free consultation. We come to your home, restaurant or building in Issaquah or Sammamish — usually about 45 minutes. We measure the opening, talk through how you actually use the space, and flag anything odd with the structure or the HOA rules.
Written quote within 5 business days. Itemized: panels, framing, labor, permits, electrical if you need it. No vague “starting at” numbers that move later.
Permits and HOA approval if required. We handle the City of Issaquah and King County submissions. For condos and townhome associations, we put together the package your board needs.
Manufacturing. Lumon panels are cut to the exact measurements of your opening, so production usually runs 4 to 6 weeks.
Install. Most residential balconies are a one-day job. Sunrooms run 3 to 5 days. Commercial phased installs work around your operating hours.
Walkthrough and warranty paperwork. You get the Lumon factory warranty plus our workmanship warranty, both registered at the end of the job.
Most residential balcony jobs around Issaquah and Sammamish land between $12,000 and $28,000, depending on how much glass you’re running, how the corners are handled, and whether we’re touching the existing railing. Sunroom additions are a bigger scope and usually start around $45,000. You get a written, itemized quote — no “starting at” pricing that creeps up later.
For a sunroom addition in the City of Issaquah, yes. Most balcony enclosures on an existing deck don’t need a permit because we’re not changing the structure, but we always confirm with the local jurisdiction before quoting. If you’re in a condo or townhome association around Klahanie or the Highlands, you’ll need HOA approval first — we put the submission package together for you.
Usually, yes — but how it shows up on an appraisal depends on whether the space counts as conditioned square footage. A Lumon enclosure tends to add value as an amenity rather than appraisable living space, because the panels are single-pane and the system is vented on purpose. If you specifically need appraisable square footage added to the house, that’s a different build — bring it up at the consultation and we’ll walk you through it.
It’s built for wet climates — Finland, Norway, coastal Canada. Water drains out through gaps at the bottom of each panel, condensation airs out naturally, and the glass is tempered for safety. We’ve got installs out 8-plus years around the Puget Sound region with no moisture problems.
Yes — restaurant patios are one of our most common commercial jobs. We coordinate with the King County health department if you’re enclosing space where food is served, and we build heating, ventilation and emergency egress into the design.
A single residential balcony is usually one day on-site once the panels are made. A full sunroom runs 3 to 5 working days. Commercial phased installs are scheduled around your hours — for restaurants we often work overnight or in the slow season.
Lumon’s factory warranty covers materials for 5 years, with guaranteed spare parts for 10 years and functional and safety components for 20. Our workmanship warranty covers the install labor for 2 years. Both get registered when the job wraps and the paperwork is yours.
Our core area is Issaquah, Sammamish and the Eastside — the Highlands, Klahanie, Squak Mountain, Preston, Snoqualmie, North Bend, Newcastle and nearby. We also cover the wider King and Snohomish county area; for the far edges we’ll come out, just expect a small travel line in the quote.