Authorized Therma-Tru Dealer

Therma-Tru Doors in Arizona

The company that invented the fiberglass entry door. It does not warp, it does not rot, and it holds a stain finish that reads as wood without wood's problems in the sun.

20+ Years in Arizona
AZ ROC #294387
Lifetime Workmanship Warranty
Therma-Tru fiberglass French doors with vented sidelites
The Brand

Who Therma-Tru Is

Therma-Tru built the first fiberglass entry door and still sets the standard for the category. Fiberglass is the right material for an Arizona front door. It does not warp in the heat, it does not rot, it does not rust, and the current grain textures are convincing enough that most people cannot pick them out from wood at arm's length.

Fiberglass does not warp. A dark door on a west-facing entry gets brutally hot. Wood moves. Steel dents and rusts at the edges once the paint chips. Fiberglass does neither.
It reads as wood, closely. Deep molded grain and stain finishes that hold up. This is the compromise that stopped being a compromise about a decade ago.
An insulated core. Polyurethane foam inside the slab, which is a real part of your entry's thermal performance and something a solid wood door simply cannot match.
Sidelites are part of the system. If your entry has glass around it, that glass is engineered as part of the door rather than bolted on afterward as an afterthought.
Specs & Options

Why We Carry Therma-Tru

On a sun-exposed Arizona entry, material is not a preference. It is the whole decision.

Fiberglass Built for Sun

It does not warp, rot, or rust, and it holds a dark finish in direct exposure. On a west-facing Arizona entry this is not a preference, it is simply the correct material.

Grain Textures & Finishes

Deep molded wood grain in a range of stains, plus smooth paintable options. We will put a sample in your hand rather than argue with you about whether it looks real.

Glass, Sidelites & Transoms

Decorative and privacy glass engineered as part of the door system, with low-E options so the glass around your entry is not quietly undoing the door's insulation.

Not sure which style fits your home?

Tell us about your doors and we'll recommend the perfect match, free of charge and with zero pressure.

Questions

Therma-Tru Questions We Get

Will a fiberglass door really look like wood?

Close enough that most people cannot tell at arm's length. The grain is molded rather than printed, and it takes a stain. We will show you a sample and let you decide with your own eyes, because arguing about it in the abstract is pointless.

Is fiberglass better than steel for a front door?

In Arizona, usually. Steel has a slight edge on raw dent resistance and on price. Fiberglass wins on heat, because it will not warp, and on finish, because it will not rust at the edges where the paint eventually chips.

Can I get glass in the door?

Yes, plus sidelites and a transom if the opening allows. Decorative, privacy, and clear options, all available with low-E glass so the glass around your entry is not a hole in your envelope.

How does it handle direct afternoon sun?

Better than anything else we carry, which is the entire reason it is in our lineup. Wood moves, steel conducts and can rust, fiberglass holds. Pair it with a UV-stable finish and it keeps looking right for years.

Premium Brands. Expert Installation.

The right doors, installed right the first time.

We pair top-rated, desert-tested products with installers who treat your home like their own. See which brand and glass package fits your home and budget, on the house.

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Related Doors

Doors We Install

Therma-Tru is the material answer. These are the doors it usually ends up being.

Areas We Serve

Window & Door Installation Across Arizona

Our crews work across the Phoenix Valley and Southern Arizona — from historic homes to brand-new master-planned communities. Browse our service areas below, or call (480) 447-5602 for a free in-home estimate.