Middle Tennessee
The condition of your crawlspace sets the condition of your home.
Encapsulation, moisture control, drainage and floor support for homes in Franklin, Brentwood, Nolensville, Spring Hill and across Middle Tennessee — engineered systems, installed by our own crews, backed by a written warranty that transfers with the house.
- Musty smell or high humidityFour ways vapor gets in
- Standing water under the houseThree ways water gets in
- Soft, sloping or bouncing floorsThree framing causes
- Not sure what I am seeingWarning signs, upstairs first
- Why any of it mattersStructure, air and energy
- I already have a quoteFree second opinion
- Do you come out to my town?Franklin and Middle Tennessee
The most common one · water vapor
Humidity does not need a leak. It has four ways in, and all four are open right now.
A vented crawlspace is connected to the outside air and to bare earth at the same time. Select a pathway below to see how vapor enters and what it does once it is inside — or open The problem for liquid water and floor framing as well.
Evaporation up through bare soil
What it causesAlready been quoted?
Send us the estimate you already have. We will go through it with you, free.
If someone has already been under your house and handed you a number, you are entitled to know whether the scope is right and whether the price is fair. We will read the proposal line by line, inspect the crawlspace ourselves, and tell you plainly what we would do differently — including when we would leave it alone.
No obligation and no charge, whether you hire us or not. If their proposal is sound, we will tell you that.
In every crawlspace we seal
Things other companies charge extra for, or leave out.
These are not upgrades and they are not separate line items on your proposal. They are part of the job, on every job, at the price we quoted you.
Lighting throughout
LED fixtures installed across the crawlspace, wired and switched. You should be able to look under your own house and see what you paid for, without a flashlight and a long crawl.
A humidity monitor you can read
A monitor so you can check the humidity under your house from where you are standing. If the system ever stops holding its range, you will know about it before the wood does.
The electrical work to run it
A dehumidifier, a sump pump and lighting all need power. We install the circuits and outlets they run on as part of the job, so you are not left hiring an electrician to finish what we started.
What homeowners say
We would rather earn the first ten reviews than borrow anyone else's.
Southern Crawlspace Solutions is new. Every review on this page will be a real one, from a real Middle Tennessee homeowner, left on Google where anyone can check it. Until there are some, here is what we will put in writing instead.
Where we work
Based in Franklin. Working across Williamson County and Middle Tennessee.
Crawlspaces here sit in Maury and Mountview clay over limestone — soil that holds water against a foundation long after the rain has stopped, which is why so many houses in this part of the state have a wet crawlspace and no visible leak. We work close to home on purpose: same-day answers, next-day inspections, and a truck that can come back.
Williamson County
- Franklin
- Brentwood
- Nolensville
- Thompson's Station
- Spring Hill
- Arrington
- College Grove
- Leiper's Fork
- Fairview
Davidson County
- Nashville
- Bellevue
- Green Hills
- Antioch
- Madison
- Goodlettsville
Rutherford & Maury
- Murfreesboro
- Smyrna
- La Vergne
- Columbia
- Mount Pleasant
Wilson, Sumner & west
- Mt. Juliet
- Lebanon
- Hendersonville
- Gallatin
- Dickson
- Kingston Springs
Do not see your town? If you are within about an hour of Franklin, call and ask — the answer is usually yes, and it costs you nothing to find out.
What is actually happening
Three ways a crawlspace goes wrong. Pick one and watch it.
Most companies will tell you that you have a problem. These show you how it happens. Choose a subject, then step through the pathways inside it.
Water vapor · four entry paths
Humidity does not need a leak. It has four ways in, and all four are open right now.
A vented crawlspace is connected to the outside air and to bare earth at the same time. Select a pathway below to see how vapor enters and what it does once it is inside.
Evaporation up through bare soil
What it causesLiquid water · three entry paths
Standing water rarely comes in the door. It comes in underneath you.
Two of the three paths start in the same place: the loose backfill soil that was shoveled back against your foundation after it was built. Water drains into it, collects there, and then pushes its way in.
It collects in the backfill, then is forced under the footing
What it causesFloor framing · three causes
A floor that sags is telling you the supports underneath it are too far apart.
Wood does not fail at random. It bends because something is carrying more distance than it was sized for, or because it has been wet long enough to lose the strength it started with. Select a cause below.
What to look for
Most crawlspace problems announce themselves upstairs first.
If you are noticing any of these, an inspection is worth scheduling before the underlying cause progresses further.
Soft, sloping or bouncing floors
Spots that flex underfoot, a noticeable slope, or furniture that will not sit level — typically failing girders, joists or supports that have settled into the soil.
Musty odor in the living space
A persistent earthy or damp smell that is strongest near floor level, in closets, or when the HVAC first cycles on.
Standing water or saturated soil
Water that remains under the house after rainfall does not evaporate away in a vented crawlspace. It sustains elevated humidity year‑round.
Doors and windows binding
Seasonal sticking often reflects moisture-driven movement in the framing below rather than a problem with the door itself.
Rising cooling costs
An unexplained increase in summer energy use frequently traces back to humid crawlspace air entering the conditioned envelope.
Insulation falling from the floor
Batt insulation sagging or lying on the ground is a reliable indicator that the crawlspace has been holding moisture for some time.
Why it matters upstairs
More than half the air on your first floor came up from underneath it. Air moves upward through a house, so the humidity, odor and particulates below your floor are drawn continuously into the rooms above — which is why a crawlspace problem is rarely only a crawlspace problem.
Wood rots, and the ground moves
Sustained humidity above roughly 60% lets wood-destroying fungus establish in joists, girders and subfloor, working quietly for years before a floor ever feels soft. And moisture is the leading cause of foundation settlement itself — clay soils swell as they saturate and shrink as they dry, and that repeated movement beneath your footings is what settles a house. Moving water washes soil out from under the footing as well, leaving voids for the foundation to drop into.
You breathe it
Damp soil and standing water feed mold growth and draw pests. Whatever is in that air becomes part of the air in your bedrooms — which is why a crawlspace odor is usually noticed first by guests rather than the people living with it.
Cooling costs climb
Humid air is far more expensive to condition than dry air. Your air conditioner spends a large share of its run time removing moisture rather than lowering temperature. Sealing and drying a crawlspace usually shows up on a summer bill within one season.
Our services
Four systems, plus the maintenance that keeps them working.
The Cypress systems are named for the timber Southerners have built with in wet ground for two centuries. Each addresses one cause, and we install them as complete solutions rather than partial ones. These are the systems we build a crawlspace around.
CypressSeal
Encapsulation & air quality
A sealed liner across the floor and up the walls, combined with dehumidification. We install the two together as one system — a liner alone does not control humidity, and we will not sell it that way.
- 20‑mil and 120‑mil reinforced liner
- Self‑draining dehumidification
- Foundation wall insulation
- Antimicrobial treatment
- Insulated access doors
CypressFlow
Water management
Interior perimeter drainage and sealed sump systems that intercept groundwater and carry it away from the structure before it reaches soil, framing or liner.
- Interior perimeter drainage
- Single and triple‑pump sump systems
- Buried discharge lines
- Drainage matting
- Downspout extension
CypressLock
Floor support
Adjustable steel supports set on engineered concrete footings, sized and placed to stop a sagging or bouncing floor from settling any further.
- Adjustable steel floor supports
- Engineered concrete footings
- Supplemental support beneath sagging girders
- Joist sistering for reinforcement
CypressSeal
Insulation
Insulation belongs on the foundation walls of a sealed crawlspace, not stuffed between the floor joists where it holds moisture against the wood. Where old batts have already taken on water, they come out first.
- Foundation wall insulation
- Removal and disposal of failed batt insulation
- Installed inside the sealed envelope, not against the ground
CypressCare
Maintenance plans
Annual inspection and service that keeps the system performing, catches developing issues early, and keeps your warranty in force.
- 1, 3 and 5‑year terms
- Annual system inspection
- Dehumidifier & pump service
- Priority scheduling
- Transfers with the home
What a project can include
Every crawlspace is different, and most projects combine work from more than one system. Beyond the headline items above, a proposal commonly includes:
- Antimicrobial and mold treatment
- Insulated, lockable crawlspace access doors
- Removal and disposal of old insulation
- Cutting and framing a new crawlspace access
- Sealing and closing existing foundation vents
- Dedicated electrical outlets for equipment
- Condensate pumps and dehumidifier ducting
- Drainage matting beneath the liner
- Buried discharge lines and downspout extension
- Site work and removal of obstructions
- Locating and protecting buried utilities
- Battery backup for sump systems
How we work
The parts most companies leave you to find out later.
Our standards, the order a job runs in, what the warranty actually covers, and exactly how the money works.
Our standards
How we run a job.
Commitments we hold ourselves to on every project, not selling points adjusted from one customer to the next.
Written before decided
You receive an itemized written proposal to review on your own time. Nothing is asked of you during the inspection.
Complete systems only
We decline work we do not believe will solve the problem. Encapsulation is installed with dehumidification or not at all.
Our own crews
Work is performed by employees we train and supervise, not subcontracted to whoever is available that week.
Documented findings
Photographs, moisture readings and measurements of what we actually found, provided with the proposal.
Clear scope boundaries
We state plainly what is and is not included, and what we are not qualified to take on, before the contract is signed.
Licensed and insured
General liability and workers' compensation in force, with certificates available on request at any time.
The process
What to expect, start to finish.
Inspection
A full assessment of the crawlspace — moisture readings, structural condition, drainage, and photographs of what we find. Free, and typically under an hour.
Written proposal
An itemized written proposal covering the work we recommend, with a drawing where the scope calls for one. Yours to review at your own pace.
Installation
A deposit at signing, balance on completion. Most crawlspace projects are finished in one to three days by our own crew.
Walkthrough & warranty
We walk the finished work with you before final payment, then leave you the written warranty and maintenance schedule.
Warranty
Provided in writing, before you sign — not after.
The coverage below is a summary. You receive the complete warranty with your proposal, so you can read every term, every exclusion and every duration while you are still deciding. Where we do not warrant something, we say so directly rather than leaving it to be discovered later.
The warranty transfers once to a subsequent owner, which is worth having in hand at closing.
- LifetimeEncapsulation liner against manufacturing defect, on complete systems
- LifetimeInterior drainage, against water through the treated perimeter
Payment
Terms, stated up front.
Crawlspace repair is rarely a planned expense. Here is exactly how the money works so nothing arrives as a surprise.
Third-party financing is available on larger projects and is arranged at the time of signing. Approval and terms are set by the lender.
Pick your own inspection time
Ninety minutes, at no cost. Choose a slot that suits you and it goes straight on our calendar — no phone tag, no waiting on a callback.
These are suggested inspection times, in Central Time, starting at least two days ahead. Availability must be confirmed by phone or email; selecting a time does not reserve it. Need something sooner or a different time? Call and ask.
Schedule an inspection
Let us take a look under the house.
A full inspection with moisture readings, photographs and a written proposal — at no cost and with no obligation. If your crawlspace does not need work, we will tell you that too.
Send photos of what you are seeing and we will tell you what it looks like.
Service areaFranklin · Brentwood · Nolensville · Thompson's Station · Spring Hill · Arrington · College Grove · Leiper's Fork · Fairview · Nashville · Bellevue · Murfreesboro · Smyrna · Columbia · Mt. Juliet · Lebanon · Hendersonville · Gallatin · Dickson — and the rest of Williamson, Davidson, Rutherford, Maury and Wilson counties.
Common questions
Answers we give in most crawlspaces.
How much will my crawlspace cost?
It depends entirely on what we find, and we would be guessing if we answered before looking. Square footage, clearance, how much water is present, whether drainage is needed and what condition the framing is in all change the number substantially. That is why the inspection is free and carries no obligation — you get a written, itemized proposal with real numbers, and you take as long as you like with it.
What is the difference between the 20‑mil and 120‑mil liner?
Both are reinforced and both seal the crawlspace. The 120‑mil is substantially heavier and more puncture‑resistant, which matters where the space sees regular foot traffic — used for storage, or where HVAC and plumbing need frequent service access. The 20‑mil is the right specification for most homes, and we will tell you honestly which one your crawlspace calls for rather than defaulting to the heavier one.
Do I need encapsulation, or is a vapor barrier enough on its own?
A liner stops moisture evaporating up out of the soil, which is a genuine part of the problem. It does nothing about humid outside air entering through the vents and condensing on cool framing, which is the other part. That is why we install encapsulation only as a complete system with dehumidification, and why a liner installed alone carries no warranty from us. If your budget only reaches a liner today, we would rather help you plan for the full system than sell you half of one.
How long does the work take?
Most crawlspace encapsulations run one to three days depending on square footage and how much preparation the space needs. Drainage and sump installation is typically two to three days. You receive a scheduled window before we begin.
Do you handle mold remediation?
No. We are not a mold remediation contractor and we do not present ourselves as one. What we do is remove the conditions mold requires — standing water, saturated soil and sustained high humidity — which addresses the underlying cause. If you have active growth requiring professional remediation, you need a licensed remediation contractor, and we will tell you that rather than take the work.
Do you do foundation piers or concrete lifting?
Not at this time. Our services cover crawlspace encapsulation, moisture and water management, and floor support. If your home needs foundation underpinning, slab work, or structural framing replacement, we will say so during the inspection and point you toward a qualified contractor for it.
Will you look at an estimate I already have?
Yes, at no cost and with no obligation. Bring us the scope and we will walk through what is being proposed and what it actually addresses. If the proposal you are holding is the right one for your home, we will tell you that.
Are you licensed and insured?
What areas do you serve?
Nashville and the surrounding Middle Tennessee counties, including Williamson, Rutherford, Sumner, Wilson, Robertson, Maury, Dickson and Montgomery. If you are near the edge of that area, call and ask — we will tell you honestly whether we can serve you well.