Crawl Space Waterproofing in Longwood, Florida
13 crawl space companies serve Longwood, Florida, with 2,620 customer reviews between them. Most full-service crawl space contractors handle waterproofing even when it isn't listed separately — confirm scope when comparing quotes. Local waterproofing typically runs $1,500–$5,000.
Get drainage and sump pump quotes from Longwood pros who handle wet crawl spaces. For full service comparisons, see all crawl space contractors in Longwood or encapsulation pros in Longwood.
Longwood Waterproofing Cost — Southeast — Heavy Seasonal Rain
Annual rainfall: 45–65 inches, concentrated in summer thunderstorms.
Cost varies with crawl space perimeter, sump pump capacity, discharge length, and exterior grading work. Get 2–3 quotes for an exact number.
Why Waterproofing Matters in Longwood
In the Southeast, waterproofing is rarely just about keeping rain out — it is about managing groundwater that rises seasonally and storm bursts that overwhelm yard drainage in minutes. A sealed crawl space without drainage will flood from below during heavy storms because hydrostatic pressure pushes groundwater up through the substrate. Interior perimeter drains and a sump pump are the standard fix.
What a Longwood Waterproofing System Should Include
- ✓Interior perimeter drain channel along footings (1.5–2 inch radius)
- ✓Sump pit and pump (1/3 to 1/2 HP, with battery backup)
- ✓Discharge line routed at least 10 feet from foundation
- ✓Vapor barrier (12–20 mil) over the drain system
- ✓Exterior French drain if the lot grades toward the home
- ✓Hurricane-rated check valve on discharge line
Interior vs Exterior Drainage in Florida
Recommendation
Interior perimeter drains are the primary line of defense in the Southeast. Exterior French drains help but are not sufficient alone — Southeast soil saturation defeats them during heavy storms.
Sump Pump Sizing
A 1/2 HP sump pump with battery backup is standard in this region. Power outages are common during the storms that create the most water — a battery backup is non-negotiable. Expect to replace pumps every 7–10 years.
What to Watch For in Florida
- !Reject any waterproofing quote that does not include a sump pump in the Southeast
- !Confirm the discharge line cannot back-flow during a flooded yard scenario (check valve required)
- !Pair with encapsulation — sealed crawl space + drainage is the long-term Southeast standard
Waterproofing Contractors in Longwood
FOUNDATION TECHS Inspection & Repair
1070 Montgomery Rd Suit 110, Altamonte Springs, FL 32714, USA
21 reviews
ZeroMold Apopka | Mold , Remediation, Testing & Removal
2755 Border Lake Rd, Apopka, FL 32703, USA
21 reviews
Solid Foundation Repair of Orlando
1414 Kuhl Ave, Orlando, FL 32806, USA
32 reviews
Florida Elite Foundation Repair
1100 W Central Blvd, Orlando, FL 32805, USA
5 reviews
Rapid Recovery Team Orlando LLC
375 Commerce Way, Longwood, FL 32750, USA
232 reviews
DryMetrics
135 W Pineview St, Altamonte Springs, FL 32714, USA
130 reviews
Alpha Foundations
3723 Hogshead Rd, Apopka, FL 32703, USA
1546 reviews
Pure Maintenance Mold Remediation - Orlando
998 Josiane Ct #1061, Altamonte Springs, FL 32701, USA
204 reviews
PuroClean of Longwood
1987 Corporate Square #159, Longwood, FL 32750, USA
56 reviews
SERVPRO of Altamonte Springs/Longwood
491 N State Rd 434 Suite 1250, Altamonte Springs, FL 32714, USA
131 reviews
LRE Foundation Repair
277 Power Ct, Sanford, FL 32771, USA
187 reviews
Crawlspace Florida
320 Longwood Hills Rd, Longwood, FL 32750, USA
9 reviews
RECROMAX
735 W State Rd 434 Unit D, Longwood, FL 32750, USA
46 reviews
Waterproofing FAQs — Longwood, Florida
Which companies offer crawl space waterproofing in Longwood?
FOUNDATION TECHS Inspection & Repair (5.0★), ZeroMold Apopka | Mold , Remediation, Testing & Removal (5.0★), Solid Foundation Repair of Orlando (5.0★) are the top-rated crawl space companies in Longwood, and most full-service contractors handle waterproofing — ask for it specifically when requesting quotes.
How many crawl space contractors serve Longwood?
13 crawl space companies are listed for Longwood; Solid Foundation Repair of Orlando is the highest-rated at 5.0★ (32 reviews). Pros in nearby Tampa and Orlando also cover the area.
How much does crawl space waterproofing cost in Longwood, Florida?
Crawl space waterproofing in Longwood, Florida typically costs $1,500–$5,000 for a complete interior drainage system with sump pump. Southeast — Heavy Seasonal Rain pricing reflects local labor rates and the specific drainage scope each climate demands.
Do I need an interior or exterior drainage system in Longwood?
Interior perimeter drains are the primary line of defense in the Southeast. Exterior French drains help but are not sufficient alone — Southeast soil saturation defeats them during heavy storms.
What size sump pump do I need in Longwood?
A 1/2 HP sump pump with battery backup is standard in this region. Power outages are common during the storms that create the most water — a battery backup is non-negotiable. Expect to replace pumps every 7–10 years.
Why is exterior grading important for waterproofing in Florida?
Verify a 6-inch fall over the first 10 feet from foundation. Many Southeast homes have settled grade that now slopes toward the foundation — re-grading before drainage installation prevents 30–50% of water issues.
When should I schedule waterproofing in Longwood?
November through March — outside hurricane season and dry enough for excavation. Avoid May–October when storm bursts make crawl space access dangerous.
Expected ROI
Avoiding one major flood event ($8K–$25K in damage to floors, drywall, and HVAC) typically pays for the entire system within 2–5 years. Insurance: many Southeast carriers now offer 5–15% premium discounts for documented waterproofing systems.
Best Season to Schedule
November through March — outside hurricane season and dry enough for excavation. Avoid May–October when storm bursts make crawl space access dangerous.
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Also Serving Longwood
Waterproofing Guides
Southeast — Heavy Seasonal Rain
Annual rainfall: 45–65 inches, concentrated in summer thunderstorms