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Crawlspace & Foundation Specialists · Est. 2004 · Harrington, DE

Climate Resilience starts at Ground Level.

Water Management, Climate Control, and Structural Sealing — engineered as one System to keep Delaware homes dry, stable, and protected for the long term.

20+Years in Business
3Pillar System
100%Owner-Led Service
Ground Level Contracting and Services badge

Full Crawl Space Encapsulation

One system, engineered to work together.

Most crawlspace problems are really three problems at once — water, humidity, and gaps in the structure itself. A full encapsulation treats all three as one connected system instead of a list of separate fixes.

Water Management

Gutter Diverters, Drain Socks, and Sump Pumps redirect surface and subsurface water away from the Foundation Perimeter, so the ground around your home stays stable and dry.

Pillar 01 — Exterior Water Control

Climate Control

A dedicated Dehumidifier, Hygrometer, and Sealed Ventilation stabilize humidity year-round, while Air Inducers actively condition the crawlspace, protecting Wood, Drywall, and belongings from Mold and slow decay.

Pillar 02 — Interior Microclimate

Structural Barrier

Vapor Liners, Sealed Vents, and Closed-Cell Foam Banding close every gap in the Foundation, forming a permanent barrier against Moisture and Pests.

Pillar 03 — Building Envelope

No Encapsulation Required

Didn't get a full encapsulation? We'll still service what you have.

You don't need a full crawlspace system to work with us. We also maintain the equipment already doing the job in your home — sump pumps and Aprilaire dehumidifiers — so it keeps running the way it's supposed to.

Sump pump service Inspection, testing, and water alarm checks to make sure it fires when you actually need it.
Aprilaire dehumidifier service Filter changes and humidity-reading checkups on your existing whole-home Aprilaire unit.
Sump pump system installation diagram Aprilaire whole-home dehumidifier unit

Certified Aprilaire Technicians — we service and maintain Aprilaire whole-home dehumidifiers, whether or not we installed them.

Annual Care Plan

Standalone Maintenance Contract

✓Sump pump inspection
✓Water alarm inspection & test, battery change
✓Dehumidifier filter change
✓Dehumidifier humidity readings
✓Full equipment walkthrough, once a year
$200 Per Year

Service Call Rates

Care Plan Members $125 First 30 minutes
Non-Members $175 First 30 minutes
Schedule Equipment Service

Established 2004

Locally owned. Owner-led on every job.

Based in Harrington, Delaware, Ground Level Contracting and Services, Inc. has spent over two decades solving crawlspace and foundation problems for Delaware homeowners — the kind of work that stays hidden once it's done right.

Christopher McNamire Owner & President

Our Story

Built on work you never have to think about again.

We started Ground Level with a simple idea: a crawlspace shouldn't be an afterthought. Left alone, water intrusion, humidity, and small structural gaps compound into expensive problems — mold, rot, pests, failing insulation. Treating them as one connected system, instead of three separate service calls, is what actually makes the fix permanent.

Every estimate is walked through in person, every job is signed off by the same team that diagnosed it, and every completed job includes a clear, itemized statement of exactly what was installed and why.

2004Ground Level founded, focused on crawlspace water management.
SinceExpanded into full climate control and structural sealing systems.
TodayA three-pillar approach built around long-term Climate Resilience, not one-time fixes.

Client Reviews

What homeowners say after the work is done.

★★★★★
3 months ago
Chris is very knowledgeable and professional. He is trustworthy and will make sure you have a crawlspace that will be properly maintained. I would definitely give them the opportunity for your business. I don't think you will regret it. I had a dehumidifier installed with WiFi and pump sensor.
★★★★★
2 months ago
Chris is always most excellent at his job. He is polite and friendly. I appreciate his business form. Thank you,
★★★★★
Edited 7 months ago
They gave us excellent service even though we bought the equipment 5 years ago! Chris was very helpful and extremely nice.
★★★★★
Edited 6 months ago
Chris did a great job extending our drain pipe to take it a little further away from our foundation. I appreciate his service and easy manner.
★★★★★
5 months ago
Chris did a great job repairing and replacing the crawl space liner and leveling the gravel under the liner.
★★★★★
a year ago
Chris was very professional and informative. He was very thorough with the inspection and minor repairs and took the time to explain his findings and answer any questions that I had. I recommend them highly for your crawl space needs.
★★★★★
Edited a year ago
Chris always goes the extra mile! He was able to determine that our unit was a little noisy because of our flooring and replaced it with a lesser powerful unit which still worked for the area, but did not make the noise coming up from the floorboards. We had actually had four prior HVAC techs out to determine the issue, but Chris actually thought that he knew what the issue was before he came out. I would strongly, strongly, strongly recommend using him.
★★★★★
4 months ago
Thank you Chris for the detailed information! Your service is so helpful!
★★★★★
a year ago
Chris helped me to get my device back online and reconnect to the Pump Spy app. He was very friendly, professional, knowledgeable, and willing to answer any questions I had. He deserves a AAA+!
★★★★★
11 months ago
Chris is excellent. He is thorough with the inspections and always answers our questions.
★★★★★
a year ago
Service representative, Chris, was outstanding. He took his time and explained everything.
★★★★★
a year ago
Great service. Technician Chris very professional and courteous.

Get In Touch

Request your free estimate.

Tell us a bit about your crawlspace or foundation concern and we'll follow up to schedule a walkthrough.

Contact

Ground Level Contracting & Services, Inc.

Reach out directly, or use the form and we'll get back to you.

Phone
302-233-4256
Email
moisture@glcontractingde.com
Service Area
Based in Harrington, DE · Serving Central & Southern Delaware
Owner
Christopher McNamire, Owner & President

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