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Water damage restoration in Longmont, CO costs $1,700–$9,500 for most homes, and structural drying takes 3–5 days. What decides the number is how long the water sat: mold starts on wet material in 24–48 hours, and a drying job that becomes a mold job costs more. Call (888) 840-6512 to reach an IICRC-certified restoration company covering your ZIP — the line is answered 24/7.
ASAP
Response
24/7 dispatch
$1,700–$9,500
Typical cost
Boulder County range
3–5 days
Typical drying
Measured, not timed
Answered right now
Two minutes on the phone beats an hour of reading.
Toll-free · no obligation · 24/7
Press 1 for water damage or 2 for mold, then your 5-digit ZIP — then stay on the line while it connects.
Covered: Longmont & Boulder · 80501 · 80502 · 80503 · 80504
Shut off the main water supply — know your shutoff location now
⚠ If water is near the electrical panel, cut power first
Cut electricity to all wet areas at the breaker panel
⚠ Never touch outlets or appliances in standing water
Photograph and video ALL damage before moving anything
⚠ This is critical for your insurance claim — don't skip
Move documents, medications, and irreplaceable items to dry area
Call a certified restoration company — not just a plumber
⚠ A plumber fixes the source; restoration extracts water and dries structure
Call your insurance company to open a claim — get a claim number
⚠ Do NOT let any contractor start without a claim number
Water coming in right now? Emergency water damage crews in Longmont — 24/7.
IICRC Classification
The IICRC category determines restoration approach, cost, and urgency. Select yours below.
What type of water damage?
Talk to a water damage pro near Longmont
Answered 24/7 across Longmont · Free call · Your ZIP routes you to the nearest crew
(888) 840-6512Local Pricing Data
Typical range: $1,700 – $9,500 ($4–$12/sq ft)
Estimates based on local market data. Actual cost varies by damage extent, materials, and contractor. Always get 3+ written quotes.
Extraction & drying cost per square foot by IICRC water category
| Water Category | $/sq ft |
|---|---|
| Category 1 — Clean Burst supply line, clean appliance overflow | $2.98–$7.36 |
| Category 2 — Gray Dishwasher, washing machine, toilet bowl (no feces) | $7.36–$8.91 |
| Category 3 — Black Sewage backup, floodwater, toilet overflow with feces | $10.46–$13.2 |
Estimates exclude reconstruction (drywall, flooring replacement). National benchmarks: Cat 1 $3.75–$4.25, Cat 2 $4.10–$6.50, Cat 3 $7–$7.50/sq ft — adjusted for Longmont market (3.5–12/sq ft range).
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Equipment
Removes the moisture the structure is still giving off — the machine that decides how long drying takes
See the picks →Moves air across wet surfaces so the dehumidifier has something to take out of the air
See the picks →Finds water behind walls and under floors, and tells you when a material is actually dry
See the picks →Alerts you the moment a leak starts — the cheapest thing on this list and the only preventive one
See the picks →Those pages carry affiliate links. As an Amazon Associate, HearthDry earns from qualifying purchases; it costs you nothing extra.
Homeowner Protection
Predatory contractors target homeowners during emergencies. Verify these 6 items before signing anything.
Verify at iicrc.org — look for WRT (Water Restoration Technician) or AMRT (Mold Remediation) credentials.
Active license with Colorado Department of Regulatory Agencies (DORA); general contractors require local licensing in most CO jurisdictions; no statewide mold contractor license but EPA guidelines required. Never hire unlicensed contractors.
Ask for a certificate of insurance. If a worker is injured on your property without coverage, you may be liable.
Reputable companies provide a written scope and cost estimate before starting work. No estimate = walk away.
Assignment of Benefits lets contractors file claims on your behalf — often leads to inflated invoices and disputes.
For non-emergency work, get at least 3 written quotes. Emergency extraction can start; reconstruction quotes can wait.
Local Risk Profile
Longmont sits along St. Vrain Creek, which catastrophically flooded in September 2013 in a once-in-a-millennium precipitation event causing over $150 million in damage to the city. The 2013 disaster reshaped Longmont's floodplain management, but elevated risk remains during intense late-summer rainfall on the Front Range. Hail storms striking Longmont from the northeast are a persistent secondary cause of roof damage and subsequent interior water intrusion.
High-risk neighborhoods
Southmoor Park and properties within the St. Vrain Creek FEMA floodplain were most severely damaged in 2013 and remain in a high-risk zone. Old Town Longmont has numerous properties with aging clay sewer laterals prone to root intrusion and backup during heavy rainfall events.
Population
98,885
County
Boulder
Talk to a water damage pro near Longmont
Answered 24/7 across Longmont · Free call · Your ZIP routes you to the nearest crew
(888) 840-6512Coverage & Legal
Colorado Division of Insurance requires insurers to respond within 10 days and pay within 60 days of satisfactory proof. Colorado has the highest hail damage cost in the US ($2B+ annually) — insurers have raised deductibles and are now excluding or capping cosmetic hail damage. Document every hail event with weather service records and aerial photography.
Longmont homeowners should check Boulder County's post-2013 updated FEMA flood maps, as many properties were reclassified into higher-risk zones requiring mandatory NFIP flood insurance through federally backed mortgage lenders.
HearthDry is an independent educational resource. We are not a licensed contractor, insurer, or legal advisor. Information is provided for general guidance only.
Available Services
Full-service water extraction, drying, and structural restoration
$1,500–$9,500
Emergency pipe repair and water damage cleanup
$1,200–$8,000
Professional mold testing, removal, and prevention
$1,500–$12,000
Sewer backup, septic backup and sewage extraction, decontamination, and restoration
$2,000–$10,000
Basement water extraction, waterproofing assessment, and restoration
$1,000–$7,000
Ceiling leak detection, drying, and restoration
$800–$5,000
Vapor barrier installation, dehumidification, and full crawl space waterproofing
$1,500–$15,000
Emergency standing water removal with truck-mounted extraction equipment
$500–$3,500
Contained removal of black mold colonies with HEPA filtration and clearance testing
$1,000–$6,000
Water heater, washing machine, and dishwasher leak cleanup and structural drying
$800–$4,500
Basement water removal and drying after sump pump failure
$1,200–$7,000
Category 2/3 toilet overflow extraction, sanitization, and drying
$500–$4,000
Slab leak detection support, water damage cleanup, and structural drying
$2,000–$10,000
Professional mold inspections, air sampling, and lab-verified reports
$200–$1,200
Attic-to-ceiling water damage drying and repair after roof leaks
$1,000–$6,500
In-place drying and restoration of water-damaged hardwood floors
$1,500–$8,000
Wet drywall assessment, controlled removal, drying, and repair
$600–$4,000
Standing water pump-out, drying, and moisture control under your home
$1,200–$6,000
Attic moisture, insulation, and framing restoration after leaks and condensation
$1,000–$5,500
Mold mitigation, abatement, and treatment by certified specialists
$1,000–$6,500
Interior drainage, sump systems, and sealing that keep basement water out for good
$2,500–$12,000
Drainage, vapor barriers, and sump systems that keep the space under your home dry year-round
$1,500–$9,000
Cleanup and structural drying after a fire — including the water that put it out
$3,000–$25,000
FEMA Data
Official FEMA disaster declarations and National Flood Insurance Program statistics for Longmont homeowners.
Editorial Standards
We connect you with pros available around the clock — nights, weekends, and holidays.
Referrals go to restoration professionals working to IICRC standards (S500 water, S520 mold).
Referred contractors are expected to hold state licensing and liability insurance — ask for both before work starts.
Call anytime — triage help and contractor dispatch at no obligation.
Most certified restoration companies serving Longmont answer 24/7 and confirm a real arrival window for your address on the call — how long that is depends on where you are, what time it is, and how many jobs are already running.
Call early either way: every hour that water sits widens the damage, and mold starts on wet material within 24–48 hours.
Most residential projects in Longmont take 3–5 days with professional equipment. Scope depends on square footage, IICRC water category (clean vs. gray vs. sewage), and whether mold remediation is needed. Longmont sits along St. Vrain Creek, which catastrophically flooded in September 2013 in a once-in-a-millennium precipitation event causing over $150 million in damage to the city.
The 2013 disaster reshaped Longmont's floodplain management, but elevated risk remains during intense late-summer rainfall on the Front Range. Hail storms striking Longmont from the northeast are a persistent secondary cause of roof damage and subsequent interior water intrusion..
The top causes in Longmont: St. Vrain Creek flooding during intense late-summer rainfall events on the Front Range; Hail-driven roof damage causing attic and ceiling water intrusion; Rapid Front Range snowmelt elevating local drainage channels and retention ponds in spring; Frozen pipe bursts in Longmont's pre-1960s housing stock in the Old Town district. Longmont sits along St.
Vrain Creek, which catastrophically flooded in September 2013 in a once-in-a-millennium precipitation event causing over $150 million in damage to the city. The 2013 disaster reshaped Longmont's floodplain management, but elevated risk remains during intense late-summer rainfall on the Front Range. Hail storms striking Longmont from the northeast are a persistent secondary cause of roof damage and subsequent interior water intrusion.
Standard homeowners insurance covers sudden accidental water damage (burst pipes, appliance failures). For flood damage — a significant risk in Longmont — you need a separate NFIP or private flood policy.
Longmont homeowners should check Boulder County's post-2013 updated FEMA flood maps, as many properties were reclassified into higher-risk zones requiring mandatory NFIP flood insurance through federally backed mortgage lenders.
In Longmont, residential restoration typically costs $1,700–$9,500, at $3.5–$12/sq ft. IICRC Category 3 (sewage/flood) events cost more due to decontamination. Always get written estimates from 3+ IICRC-certified contractors.
Check Colorado Department of Regulatory Agencies (DORA); general contractors require local licensing in most CO jurisdictions; no statewide mold contractor license but EPA guidelines required before hiring. Confirm:
Southmoor Park and properties within the St. Vrain Creek FEMA floodplain were most severely damaged in 2013 and remain in a high-risk zone.
Old Town Longmont has numerous properties with aging clay sewer laterals prone to root intrusion and backup during heavy rainfall events. Check FEMA's Flood Map Service at msc.fema.gov to see your exact flood zone. The Longmont area is rated medium flood risk overall.
A flood claim goes to your NFIP or private flood carrier, not to your homeowners insurer — they are separate policies and a homeowners claim will be denied for flood water. Report it the day you find it. NFIP requires a signed Proof of Loss, normally within 60 days of the loss, and the documentation you gather in the first hours is what it is built from: video of every affected room before anything is moved, photographs of the high-water line, a list of damaged contents with what you paid, and receipts for emergency mitigation.
Longmont homeowners should check Boulder County's post-2013 updated FEMA flood maps, as many properties were reclassified into higher-risk zones requiring mandatory NFIP flood insurance through federally backed mortgage lenders. Mitigation is not optional — every policy requires you to stop further damage, so drying starts before the adjuster arrives, and you keep the invoices.
Call (888) 840-6512. The line is answered 24 hours a day, seven days a week, and connects you with an IICRC-certified water damage restoration company that serves your area.
Describe what you can see — where the water is coming from, how long it has been there, and whether it smells — and the dispatcher routes you to a crew that handles that kind of loss. If the source is a pipe or an appliance, shut the main water valve first; the call itself takes under two minutes.
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Serving Longmont, CO
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Educational Resources
Most homeowners call a plumber first. That's the wrong call. The order in which you contact a restoration company, your insurer, and a plumber directly affects how much you recover from insurance -- and how fast your home is restored.
The decisions you make in the first 60 minutes after water damage determine how much you pay, how fast you recover, and whether your insurance claim succeeds. Here's the exact sequence of actions.
Most water damage insurance claim denials happen because homeowners make one of seven preventable mistakes. This guide shows you exactly what to do — and what to avoid — from the moment water appears.
The average water damage restoration costs $3,900 nationally — but ranges from $1,200 to $25,000+ depending on factors most homeowners don't know about before they call.
Common situations
Standing water in your basement? Follow this exact sequence: safety first, pump planning, documentation, and when to call IICRC-certified pros before mold starts.
A burst pipe releases 100+ gallons per hour. Every minute counts. Shut off water, cut power, document, and call IICRC-certified pros — not just a plumber.
Sewage backup is Category 3 black water — a biohazard. Evacuate affected areas, do not attempt DIY cleanup, and call IICRC-certified decontamination specialists immediately.
Cost ranges are national typical ranges from our cost data; the pro on the line quotes your exact job.
IICRC-certified pros serving Longmont and Boulder County. Answered 24/7.
Press 1 for water damage or 2 for mold, then your 5-digit ZIP — then stay on the line while it connects.
