Mold Remediation in Allen, TX
Licensed, contained mold removal and reconstruction for Allen homes and businesses, remediated to a mold assessment consultant's protocol. Family-owned since 1999.
Call (972) 747-7734 Request ServiceMold remediation in Allen, TX. Mold in a Allen home isn't just unsightly — done wrong, remediation spreads spores through the rest of the house. Rainy Day Restoration and Roofing is licensed for mold remediation in Texas (license RCO1416), and we do it the way the state requires: working from a mold assessment consultant's protocol, we find the moisture source, contain the area, remove the mold safely, make sure it doesn't come back — and have the results tested and verified by that consultant.
We're a local, family-owned company that has handled North Texas moisture problems since 1999 — and because we also do water restoration and roofing, we can fix whatever is feeding the mold in the first place, not just clean what's visible. Allen sits right in the North Texas hail belt, so storm-driven damage is a fact of life here — and it's a lot of what we handle.
Mold problems we handle in Allen
Mold has many causes, and we remediate all of them:
How our mold remediation process works
In Texas, mold assessment and mold remediation must be handled by separate, independent parties — so the company doing the work isn't the one grading it. We're the licensed remediator. Here's how a job runs:
- The mold assessment consultant's protocol. We don't identify or test the mold ourselves. A licensed, third-party mold assessment consultant (MAC) inspects the property, identifies the mold, and writes the remediation protocol — and we follow it.
- Containment. We seal off the work area with containment barriers and negative air pressure so spores can't migrate to clean parts of the home.
- Air filtration. HEPA air scrubbers capture airborne spores throughout the process.
- Removal. Affected materials are removed and surfaces treated to the assessor's protocol and professional remediation standards.
- Address the moisture source. Mold won't stay gone until the moisture feeding it is resolved. We repair it directly when it's our trade — like a leaking roof — and coordinate the right specialist (such as a plumber or HVAC contractor) when it isn't, so the underlying cause actually gets handled.
- Third-party verification. When we're done, the mold assessment consultant re-tests the area and confirms it passes clearance. An outside party verifies the work, not us.
- Rebuild. Once it's cleared, we repair and restore what was removed, so your home is whole again.
We document our Allen mold remediation projects: the conditions, the contained removal, and the cleared result. Recent projects appear here as our case-study library grows.
The honest approach Allen homeowners appreciate
Not every spot of mold needs heavy machinery and a five-figure remediation. We're known locally for telling you the truth: if a small area is safe for you to handle yourself, we'll say so and show you how — and if it genuinely needs professional containment and removal, we'll explain exactly why. You get a straight answer, not a scare tactic.
If you're not sure whether you even need a mold assessment consultant yet, schedule a site visit. We'll take a look and help you figure out the right next step — including whether a MAC is needed first.
Why one company for the whole job
Mold is almost always a symptom of a moisture problem. Most mold companies remove what's there and leave the source for you to chase down with someone else. Because Rainy Day is a mold, water, roofing, and reconstruction company under one roof, we can:
Whether your mold started with a bathroom, a crawl space, a plumbing leak, or a roof, you make one call — and it actually gets solved, not just cleaned.
Mold remediation for Allen homes
Allen sits right in the heart of North Texas hail country, and most of its housing went up in the 1990s and 2000s — which means a large share of Allen roofs are now hitting the 20-to-25-year mark where hail damage and age add up to replacement. Neighborhoods like Twin Creeks and the areas around Watters Creek see the same storm exposure as the rest of Collin County.
We handle storm and hail claims across Allen every season, and because we're also a full water and mold company, we can take care of any leak that already made it inside — not just the roof. One local company, from the first inspection through the final rebuild.


Our Texas mold remediation license (RCO1416) is verifiable through the Texas Department of Licensing and Regulation.
Why mold shows up in Allen homes
In Twin Creeks and Allen's other 1990s and 2000s neighborhoods, mold almost always follows a water leak that ran for a while: 20-to-30-year-old copper pinholing inside a wall, a tub drain under a master bath, or chimney and sidewall flashing that has let storm water in for years. The growth is hidden behind finishes by the time anyone smells it. Because we are also a water and roofing company, we find and stop that source ourselves.
Star Creek, Waterford Parks, and the newer, tighter construction along Stacy Road grow humidity-driven mold with no leak at all: an oversized air conditioner that short-cycles and never dehumidifies, a condensate line backed up in the attic, or a bath fan venting into the insulation. The older homes around downtown Allen add pier-and-beam crawlspaces that stay damp and feed mold into subfloors from below. We check humidity and the HVAC on every inspection.
Texas rules apply in Allen the same as statewide: over about 25 square feet, a licensed mold assessment consultant writes the protocol and does clearance testing, and a separate licensed remediation contractor (that is us, RCO1416) does the work. You receive a Certificate of Mold Damage Remediation when the job passes, which a buyer's inspector will ask for when you sell.
We are about 20 to 25 minutes up US-75 in Anna, so an Allen moisture inspection can usually happen the same day you call.
Twin Creeks
Allen's signature golf-course community on the west side, built through the 1990s and 2000s. Homes are 20 to 30 years old: copper supply lines pinholing, first-generation water heaters long past due, slab plumbing stressed by decades of clay movement. Roofs are mostly new after the 2023 and 2025 hail, many installed in a hurry by crews that are not around to honor the warranty. The Twin Creeks association has architectural standards on shingle color and style; we work from the approved list and handle the submittal.
We feature a different Allen neighborhood each month.
The hard freezes that have hit Allen since 2021, with dates and low temperatures, are listed further down this page.
Why Allen homeowners call Rainy Day
Allen mold remediation — frequently asked questions
- Do you inspect or test for mold yourselves?
- No — and that's by design. In Texas, mold assessment and remediation must be done by separate, independent parties, so the company doing the work isn't the one grading it. A licensed mold assessment consultant (MAC) inspects, tests, and writes the protocol; we're the licensed remediator who carries it out. If you don't have a mold assessment consultant yet, we can help you find one.
- Is black mold dangerous?
- Any significant indoor mold should be taken seriously, and some people are more sensitive than others. The safe approach is contained, professional removal rather than disturbing it yourself — which is exactly what our licensed process is built for.
- Will the mold come back after remediation?
- Only if the moisture source isn't resolved. We repair it when it's our trade — like the roof — and coordinate the right specialist for a plumbing or HVAC cause, so it doesn't return.
- How do I know the mold is really gone?
- After we finish, the mold assessment consultant performs post-remediation verification (clearance) testing and confirms the area passes before we rebuild. We don't grade our own work — an outside party verifies it.
- Does homeowners insurance cover mold?
- It depends on the cause. Mold resulting from a sudden covered event (like a burst pipe) is often covered, while mold from long-term neglect usually isn't. We document the situation and help you understand where your claim stands.
- How long does mold remediation take?
- Most residential jobs take a few days depending on the size of the affected area and whether reconstruction is needed. We'll give you a clear timeline after the inspection.
- Why does containment matter?
- Without containment and negative air pressure, removing mold can spread spores to clean areas of the home — turning a small problem into a whole-house one. Proper containment is the difference between doing it right and making it worse.
- Does homeowners insurance cover mold in Allen?
- Usually only when it results from a covered sudden water loss, and most Texas policies cap mold coverage at a set dollar amount. We document the water source and the mold separately so the claim is handled correctly.
- Do I need a separate mold assessor in Allen?
- For anything over about 25 square feet, yes. Texas requires a licensed mold assessment consultant to write the protocol and do clearance testing, separate from the remediation contractor. We can refer you to assessors we work with regularly.
- My newer Allen home has mold but nothing leaked. Why?
- Tight construction plus North Texas humidity. An air conditioner that never runs long enough to dehumidify, a backed-up condensate line, or a bath fan venting into the attic will grow mold with no leak at all. We measure humidity and check the HVAC on every Allen inspection.
Local weather history for Allen homes
What the weather has actually done to Allen since 2021, from NOAA records, updated automatically. Hail, wind and tornado history is on our Allen roofing page.
Hard freezes that hit Allen since 2021
Freezes that reached the teens or stayed below freezing for days, from NOAA daily records at McKinney National Airport (the closest official station to Allen). Every one of these produced burst pipes in attics, exterior walls, and slab lines across Allen the morning the thaw started.
| Dates | Event | Low | Days the high never reached 32 |
|---|---|---|---|
| Jan 24, 2026 – Jan 28, 2026 | January 2026 winter storm and arctic outbreak | 13 °F | 2 |
| Feb 18, 2025 – Feb 21, 2025 | February 2025 arctic front | 10 °F | 2 |
| Jan 14, 2024 – Jan 17, 2024 | January 2024 arctic outbreak | 9 °F | 3 |
| Jan 30, 2023 – Feb 2, 2023 | January-February 2023 ice storm | 24 °F | 3 |
| Dec 22, 2022 – Dec 25, 2022 | December 2022 arctic blast (Christmas freeze) | 10 °F | 1 |
| Feb 13, 2021 – Feb 19, 2021 | Winter Storm Uri (statewide freeze) | -4 °F | 6 |
If a pipe let go in your home during one of these freezes and the wall or ceiling was patched but never opened and dried, that is where the mold calls we get every spring come from. A moisture inspection is the way to find out before it spreads.
Recent temperatures near Allen
Daily highs and lows for the last two weeks at McKinney National Airport, the closest official NOAA station. So far in 2026: hottest 107 °F on Aug 23, 2026, coldest 13 °F on Jan 25, 2026, 21 days at or above 100 and 22 nights at or below freezing. Heat matters for roofs (shingles age fastest above 100 °F and attic ventilation problems show up as blistering); freezes matter for pipes.
| Aug 18 | Aug 19 | Aug 20 | Aug 21 | Aug 22 | Aug 23 | Aug 24 | Aug 25 | Aug 26 | Aug 27 | Aug 28 | Aug 29 | Aug 30 | Aug 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High | 104 | 104 | 104 | 99 | 101 | 107 | 107 | 103 | 101 | 100 | 101 | 100 | 100 | 100 |
| Low | 78 | 77 | 80 | 81 | 76 | 78 | 84 | 82 | 79 | 75 | 72 | 75 | 75 | 75 |
Source: NOAA/NCEI Storm Events Database and NOAA daily climate observations (via ACIS). Updated Sep 2, 2026. Full freeze timeline with airport lows.
- Mold Remediation (all service areas)
- Water Damage Restoration in Allen, TX — the usual cause of mold
- Roofing in Allen, TX — when mold starts with a roof leak
- Rainy Day in Allen, TX — all our services in Allen

















Mold in your Allen home?
Licensed, contained remediation that fixes the cause — not just the surface.
Call (972) 747-7734Rainy Day in Allen, TX — all our services in Allen
















Mold in your Allen home?
Licensed, contained remediation that fixes the cause — not just the surface.
Call (972) 747-7734279 Highview Lane, Anna, TX 75409 · (972) 747-7734
Serving Allen, Anna, Melissa, Allen, Frisco, Sherman & North Texas · Open 24 hours
