The first thing to check before installing or refinishing hardwood in a Baltimore rowhome or older Maryland house is the condition of the subfloor and the structural framing beneath it. At Matt’s Professional Flooring, we have walked into hundreds of older homes across Baltimore, Annapolis, Towson, and Ellicott City and found the same truth: the hardwood you can see is only half the story. What is underneath determines whether your floors will last 5 years or 50.
Key Takeaways
- Inspect the subfloor, joists, and moisture levels before any flooring decision in a pre-1960 home.
- Solid hardwood can be refinished multiple times over decades; it is often the better long-term choice for older Maryland homes, but subfloor condition dictates feasibility.
- Baltimore rowhomes built before 1978 may require lead-safe work practices and, in historic districts, approval from CHAP (Commission for Historical and Architectural Preservation).
- A professional assessment catches structural problems early and avoids costly surprises after the flooring goes down.
- Expect to budget more for an older home project than for a comparable job in a newer house; the range accounts for the extra prep work these homes need.
What Makes Hardwood Flooring Different in a Baltimore Rowhome or Older Maryland House?
Older homes were built differently, and that construction style changes everything about how flooring should be approached today. Baltimore rowhomes from the late 1800s through the 1950s were typically framed with old-growth lumber. The joists are often true-cut dimensional lumber (an actual 2 inches by 8 or 10 inches, not the nominal dimensions used today), spaced wider than modern code allows. Subfloors were frequently laid as pine planks set diagonally across the joists. These materials are solid, but after 80 to 150 years of settling, seasonal humidity swings, and the weight of renovations stacked on renovations, they are rarely still flat and level.
Maryland’s climate adds another layer. Our humid summers and dry winters cause wood to expand and contract more than it would in a climate-controlled suburban build from 2010. In a rowhome with shared party walls and a stone or brick foundation, moisture can migrate in from the ground, from an adjoining unit, or through an uninsulated crawl space. If nobody addresses that moisture before new hardwood goes down, cupping, crowning, and buckling are not if questions. They are when questions.
The upside is that many of these homes still have their original hardwood. Wide-plank oak or heart pine floors, often 3 to 5 inches wide, are buried under layers of carpet, vinyl, or decades of paint. Restoring them, rather than covering them up, preserves the character that makes these houses worth owning. We have spent 15 years doing exactly that across Maryland, and the results, when the prep work is done right, are floors that look like they belong in a magazine.
What Should You Check Before Installing or Refinishing Hardwood in an Older Home?
Start with the structure beneath the floor. Before you think about wood species, stain color, or plank width, you need answers to four questions about what is underfoot.
1. Is the subfloor solid and flat? In older homes, the subfloor is often pine planking that has separated, cupped, or been cut into over the years. Any movement or unevenness telegraphs through to the finished floor. A subfloor that moves creates squeaks and gaps in the hardwood above. In some cases, sections of subfloor need to be screwed down, patched, or replaced entirely. In others, a layer of plywood underlayment over the existing subfloor creates a flat, stable surface for new hardwood.
2. What is happening with the joists? Older joists may be undersized by modern standards or may have been notched and drilled over decades of plumbing, electrical, and HVAC work. A joist that has lost a third of its structural depth to a poorly placed drain line is weaker than it looks. Bouncy floors are a symptom. If the joists flex too much, new hardwood will not stay tight and quiet. The fix can be as straightforward as sistering new joists alongside the old ones or adding blocking between them.
3. Where is the moisture coming from? We run moisture meters on every older home job. A crawl space without a vapor barrier, a basement with foundation seepage, or a rowhome wall shared with a damp neighboring unit can push moisture into the floor assembly. The National Wood Flooring Association (NWFA) publishes installation guidelines that require specific moisture content ranges in both the subfloor and the new wood before installation begins. Skip this step and the warranty on your new floor may not survive the first Maryland summer.
4. Are there hidden materials that require special handling? Homes built before 1978 may have lead paint on baseboards, trim, or the floors themselves. Sanding lead paint creates hazardous dust. Maryland law requires lead-safe work practices, and in rental properties, the standards are even stricter. Some older flooring adhesives and underlayments also contain asbestos, particularly the black mastic adhesive used under vinyl tiles in mid-century homes. A professional flooring contractor knows when to stop and bring in an environmental testing specialist. At Matt’s Professional Flooring, we have encountered all of these scenarios and we will not proceed until the job is safe.
Solid vs Engineered Hardwood: Which Works Better in Older Maryland Homes?
Both solid and engineered hardwood can work in an older home. The right choice depends on your subfloor, your moisture situation, and your long-term plans for the house. Here is a direct comparison for the older-home context:
| Factor | Solid Hardwood | Engineered Hardwood |
|---|---|---|
| Refinishing potential | Can be sanded and refinished 4-6 times over its life; 50-100+ year lifespan. | Can be refinished 1-2 times depending on wear layer thickness; 20-40 year lifespan typical. |
| Subfloor requirements | Needs a flat, dry, wood-based subfloor; cannot go directly over concrete. | Can be installed over concrete slabs (common in Baltimore basement-level units) and over radiant heating. |
| Moisture tolerance | Less forgiving; requires strict moisture control in crawl spaces and basements. | More dimensionally stable; handles moderate moisture swings better than solid. |
| Match to existing original floors | Easier to sand, stain, and blend with original wood; achieves a near-identical match in species and width. | Can be matched visually but the surface feel and grain pattern differ from old-growth solid wood. |
| Historic district compatibility | May be accepted in less restrictive districts; matches original construction methods. | May be accepted in less restrictive districts; check your local guidelines. |
| Cost range (MD market, installed) | $8-$15 per square foot, depending on species, width, and subfloor prep needed. | $6-$12 per square foot, depending on wear layer thickness and installation method. |
In a Baltimore rowhome where the original floors can be restored, solid hardwood is almost always the better long-term answer. If you are dealing with a concrete slab in a garden-level unit or a basement that gets damp seasonally, engineered hardwood or a high-quality LVP gives you the wood look without the moisture risk. At Matt’s Professional Flooring, we install both and we help you make the call based on what your specific house needs, not on a one-size-fits-all recommendation.
What Does Hardwood Flooring Cost in an Older Baltimore Home?
Older homes cost more per square foot than new construction for flooring work, and the reason is almost always in the prep stage. In a new house, the subfloor is flat, the moisture is controlled, and the dimensions are predictable. In a 1920s rowhome, you may spend a day or more just getting the subfloor ready before the first hardwood board goes down.
In the Maryland market, new hardwood installation in an older home typically runs between $8 and $15 per square foot installed, including the subfloor work that these projects almost always need. Refinishing existing hardwood, where the floors are salvageable, falls in the $3 to $7 per square foot range, again depending on how much repair and stain matching the job requires. For a deeper look at the numbers, see our Maryland hardwood flooring cost guide.
Repairs add line items: replacing a rotted section of subfloor, sistering joists, removing old adhesive, or running a moisture mitigation system in a crawl space. Each of these is a separate task with its own labor and materials cost. A good flooring contractor walks you through which items are necessary for a lasting result and which are optional.
Why a Professional Assessment Matters for Older Home Flooring
We have been called to jobs where a homeowner bought a rowhome, pulled up the carpet on move-in day, and discovered a floor that was half original oak and half plywood patchwork, with a 2-inch slope from the front wall to the center of the room. That situation is not unusual in Baltimore. It is actually common. And the fix is not something a weekend project can handle.
A professional assessment, the kind we do before we quote any older home job, includes checking joist spacing and condition, measuring floor deflection, mapping moisture levels, identifying the wood species already in place, and determining whether existing floors can be saved or need to come out. The National Association of Home Builders (NAHB) has documented that renovation projects in pre-1960 homes average 15-25% higher costs than equivalent work in newer construction, almost entirely because of the hidden conditions that surface once work begins. Getting those conditions on the table before the first board is cut saves money and time.
We also look for what can be preserved. One of the most satisfying parts of our work is uncovering original hardwood that a previous owner covered up and making it the focal point of the room again. This is what our refinishing service specializes in: sanding away decades of wear, repairing the damaged sections, and staining and sealing the floor so it looks new while keeping the character that only old-growth wood can carry.
What Maryland Homeowners Should Know About Historic District Rules
Baltimore has 38 local historic districts overseen by CHAP (the Commission for Historical and Architectural Preservation). If your rowhome sits in one of them, Fells Point, Federal Hill, Mount Vernon, Bolton Hill, and many others, you may need a permit before you modify original flooring. The rules vary by district. Some require that original hardwood be restored rather than replaced. Others allow replacement but specify the wood species, plank width, and finish that must be used to stay consistent with the home’s period.
This is not a reason to avoid hardwood. It is a reason to plan ahead and work with a contractor who knows the process. We have handled flooring work in historic districts across Maryland and we can help you understand what your specific district requires before you commit to a plan. Outside of formal historic districts, many older neighborhoods still have strong preservation expectations in the real estate market. Buyers in Roland Park, Guilford, and original Ellicott City expect original hardwood, and restoring it is one of the best returns on investment you can make in those areas.
If your floors are damaged beyond repair, blending new wood with what remains original is a skill that takes years to develop. We match species, plank width, and grain pattern, then custom-stain the new sections so they read as one floor, not as a patch job. Our hardwood floor repair service handles everything from small section replacements to full-room blends.
Frequently Asked Questions
Can I install hardwood over the existing subfloor in my Baltimore rowhome?
It depends on the subfloor’s condition. If the pine planks are solid, flat, and dry, and the joists below are not bouncing, you can often install directly over them after screwing down any loose boards. If the subfloor is cupped, rotted, or uneven, you will need either a plywood underlayment layer or selective subfloor replacement before the hardwood goes down.
How do I know if my original hardwood floors can be refinished?
Look at the thickness of the wood above the tongue-and-groove joint. Solid hardwood needs at least 1/8 inch of wood above the groove to survive a full sanding. If the boards have been sanded multiple times over the decades and are wearing thin at the edges, they may be at the end of their refinishing life. A professional can measure this and give you a yes-or-no answer in about 10 minutes on site.
Does hardwood flooring increase the value of an older Baltimore home?
Yes. In markets like Baltimore, Annapolis, and Towson, original or period-appropriate hardwood floors are consistently listed as a top feature by buyers and appraisers. Refinished original hardwood, in particular, signals that the home has been well maintained, and it often yields a higher return than installing new flooring over a damaged original floor.
How long does hardwood floor installation take in an older home?
Every older home is different, so there is no single timeline. Subfloor repair adds days compared to a new-construction job. A typical 500-square-foot room with moderate subfloor work might take 3-5 working days from prep to final coat. Larger jobs and homes with significant structural issues take longer. The key variable is always what we find when we open things up.
What if my rowhome has sloping floors?
Sloping floors in older Baltimore rowhomes are common and are usually caused by foundation settlement or joist sag, not by the flooring itself. Minor slopes (under 1/2 inch over 8 feet) can often be accommodated during installation with leveling compounds or shimming. Larger slopes may need structural work before flooring can be installed properly. We evaluate this during the assessment and tell you honestly what the floor needs.
Is engineered hardwood allowed in Baltimore historic districts?
It depends on the specific district. Some CHAP districts require solid wood consistent with the home’s original construction. Others are more flexible, particularly for below-grade or basement-level spaces where solid hardwood would be impractical. Check with CHAP or your contractor before ordering materials.
Do I need to worry about asbestos in old flooring?
If your home was built or renovated before the 1980s, old flooring layers may contain asbestos, especially the black mastic adhesive used under vinyl or linoleum tiles and in some older sheet flooring products. Do not sand, scrape, or disturb suspect materials yourself. A licensed environmental professional can test the material, and if asbestos is present, a qualified abatement contractor removes it before flooring work begins.
Contact A Hardwood Flooring Professional Today!
Older homes are worth the work. The floors in a Baltimore rowhome or a century-old house in Ellicott City or Catonsville carry history that no new construction can replicate. Getting them right means checking what is underneath, planning for the quirks of old-house construction, and hiring someone who has done it before, many times over, in this specific market.
At Matt’s Professional Flooring, we know what to look for, we know what these houses need, and we treat every project like it is our own floor. Whether you are restoring original heart pine in a Federal Hill rowhome, blending new oak with old in an Annapolis colonial, or starting from scratch in a Towson fixer-upper, we can help.
Call us or visit our contact page to schedule an assessment. We will come to your home, inspect what you have, and give you a straightforward plan and a fair price.