Buying guide
What a frameless glass enclosure actually costs in Colorado
We are not going to open with a price per linear foot, because that number is how people get quoted badly. Here is what genuinely moves the figure, and how to read two quotes that are thousands apart.
Published 2026-08-05
Why per-foot pricing misleads
Two 30-foot decks can differ by a large multiple. One is a straight run, waist-height, on a sound structure, at ground level. The other has two corners, is full height, sits on a twenty-year-old deck that needs its rail line rebuilt, and is on the second storey where every panel has to be lifted. Same linear feet. Different jobs.
So a published per-foot number is either a range so wide it tells you nothing, or a narrow figure that will be wrong for most readers — and quietly revised upward after the survey. We would rather explain the variables and then measure your site.
The seven things that move the number
- 01
Linear feet and panel count
The obvious one, and the one everybody already knows. It sets material volume, but on its own it predicts very little.
- 02
Opening height
Height drives glass thickness, and thickness drives glass cost, hardware rating and how many people are needed to hang each panel. A tall opening is not proportionally more expensive — it steps up.
- 03
Geometry
Straight runs are the cheap case. Corners, curves, steps in the deck and out-of-square openings all need design work and per-opening fabrication rather than repeated identical panels.
- 04
Condition of what it attaches to
This is the biggest source of quote-to-quote variation in Colorado, because so many decks and pergolas were built for shade and people, not for a glazed wall. Reinforcement, rail rebuild or a new header is real work and belongs in the quote, not in a change order.
- 05
Glass specification
Clear, tinted or low-E coated. On a west-facing Front Range run, coated glass is often worth it and it costs more. That is a decision, not an upsell.
- 06
Access and storey
Whether panels can be carried in or need lifting equipment, and whether the crew can get a vehicle close, changes labour meaningfully.
- 07
Permitting and drawings
Where your jurisdiction requires a permit, the drawings, submittal and inspection time are part of the project cost. Requirements are set by your city or county building department, so confirm with them for your address.
How to compare two quotes that are thousands apart
A cheaper quote is not automatically a worse one, but it is almost always a different scope. Ask both companies to put these five things in writing:
- —Glass thickness and type, stated as a number, not as “tempered safety glass”.
- —Hardware make and finish, and what the warranty actually covers — parts, labour, or both.
- —Whether structural correction to the deck, pergola or header is included or excluded.
- —Whether permit drawings, submittal and inspection attendance are in scope.
- —Whether panels are fabricated to your measured opening or supplied in standard sizes with filler.
Nine times out of ten the gap explains itself on that list.
What it is worth comparing against
A frameless enclosure is a weather envelope added to a structure you already own. A sunroom addition is a new conditioned room with foundations, insulation, electrical and finished interior — a different product at a different price, delivering something an enclosure does not.
If you want heat, insulation and code-conditioned space, price the addition. If you want your existing deck, pergola, patio or pool usable in wind, rain, hail and snow while still fully opening in July, that is what this system does. We compare the two in detail here.
Cost drivers by enclosure type
The only accurate number comes from the site
We measure, check the structure, tell you if the project is a bad idea, and then price it. The estimate is free and there is no obligation attached to it.
Request a free on-site estimate