
Home Additions & In-Law Suites
Structural additions, second stories, in-law and multigenerational suites, sunrooms and screened porches — designed, permitted, and built by a registered Maryland home builder.
Learn moreTen services under one Maryland license — from a replacement window to a custom home on your lot.

Horizons Unlimited Home Improvements provides home additions, kitchen remodeling, bathroom remodeling, roofing, siding, windows and doors, decks and porches, egress windows, storm and insurance repair, and custom home construction throughout Howard County and central Maryland. The company is licensed under Maryland Home Improvement Contractor license #16606 and Maryland Home Builder Registration #1369, is BBB-accredited A+, and has operated from Elkridge since 1993. Estimates are free and are performed by owner Bill Gmeinwieser. Call 410-796-1333.

Structural additions, second stories, in-law and multigenerational suites, sunrooms and screened porches — designed, permitted, and built by a registered Maryland home builder.
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Full gut kitchens and targeted updates — cabinetry, countertops, lighting, flooring, and the electrical and plumbing work behind the walls.
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Tiled showers, soaking tubs, double vanities, and full accessibility conversions — waterproofed properly and finished cleanly.
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Asphalt shingle, cedar shake, slate, metal, and EPDM rubber. GAF, CertainTeed, and Firestone certified installation.
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Vinyl and aluminum siding, trim, and wrap — installed with proper flashing and house-wrap detailing so the wall assembly stays dry.
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Energy-efficient vinyl replacement windows with custom color matching, plus entry, patio, and French door replacement.
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PVC, composite, and wood decks, screened porches, and covered porches — engineered, permitted, and inspected.
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Code-compliant basement egress windows and window wells — the single requirement that decides whether a finished basement bedroom is legal.
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Wind, hail, and fallen-tree damage — from a single leak to structural rebuild, handled by one licensed contractor instead of four subcontractors.
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Design/build from concept to certificate of occupancy, including site development and permitting, under Maryland Home Builder Registration #1369.
Learn moreFull gut renovations and targeted updates. Cabinetry, countertops, backsplash, lighting, flooring — and the electrical and plumbing work behind the walls that decides whether the finished kitchen actually functions. Where a wall comes out to open the kitchen to a living space, that becomes structural work, and it is handled by the same company rather than handed to a framer you have never met.
Read the Google review from Travis Clark on our home page before you hire anyone for a kitchen. It is a story about a mistake, which is the only kind of story that tells you anything useful about a contractor.
Tiled showers, tub-to-shower conversions, soaking tub decks, double vanities, and accessibility conversions — curbless entries, wider doors, and blocking in the walls for grab bars. The part that matters and that you will never see is the waterproofing behind the tile; it is the difference between a bathroom that lasts twenty years and one that is a repair in five. Recent bathroom work is in our gallery.
Asphalt shingle, cedar shake, slate, standing-seam metal, and EPDM rubber for flat roofs. Horizons Unlimited reports certification as a GAF certified roofer, a CertainTeed certified roofer, and a Firestone certified installer — which matters because manufacturer warranties on these systems are generally only available through certified installers. Repairs as well as full replacement; also gutters, downspouts, and attic ventilation, which is the most commonly neglected part of a roof system and a frequent cause of premature shingle failure and winter ice damming.
Vinyl and aluminum siding, trim, soffit, fascia, and wrap. New construction and replacement. The installation detail that determines whether siding performs is not the siding — it is the house wrap, flashing, and window integration behind it. Done wrong, the wall assembly holds water; done right, it drains and dries.
Energy-efficient vinyl replacement windows, with custom color matching available so replacements match existing trim rather than announcing themselves. Entry doors, patio and French doors, and storm doors. Where an opening is being enlarged or created — a new slider, a wider entry — that is structural work with a header, and it falls squarely inside what this company is licensed to do.
PVC, composite, and pressure-treated wood decks; screened porches; and covered porches on proper foundations. Decks are structural: footing depth, ledger attachment, guard height and strength, and stair geometry are all code-governed, and ledger attachment in particular is the failure point in most deck collapses. Permitted and inspected. See the screened porch in our recent work.
Wind, hail, and fallen-tree damage — from a single leak to structural rebuild. The advantage of using an established local general contractor after a storm is scope: one licensed company can handle the roof, the siding, the windows, the framing, and the interior repairs, instead of you coordinating four trades while living in a damaged house. We have been at the same Elkridge address since 1993, which is a relevant distinction from the crews that appear in a neighborhood after a hailstorm and are gone by the time a warranty claim would come due.
Design/build from concept to certificate of occupancy under Maryland Home Builder Registration #1369 — including site development and permitting. If you own a lot and want to build on it, this is the credential that covers it, and it is the same credential that makes this company a sound choice for structural additions.
Interior doors and trim, flooring, drywall, basement finishing, and the general repair work that most larger contractors will not take. A thirty-three-year-old company still answering small jobs is not an accident — small jobs are how most long relationships start.
Home additions and in-law suites, kitchen remodeling, bathroom remodeling, roofing, siding, windows and doors, decks and screened porches, basement egress windows, storm and insurance repair, custom home construction, gutters and attic ventilation, interior upgrades, and general repairs — throughout Howard County and central Maryland.
Both. Projects range from roughly $500 to $200,000. The company still takes general repair work and single-item jobs such as a replacement door or a basement Bilco door, which is how a number of its larger relationships began.
The company reports certification as a GAF certified roofer, a CertainTeed certified roofer, and a Firestone certified installer for EPDM rubber roofing. Manufacturer warranty coverage on these systems is generally available only through certified installers, so it is worth confirming certification with any roofer you consider — not only this one.
Horizons Unlimited has run promotions including $1,000 off siding jobs, $500 off roofing, and $100 off windows. Confirm current offers when you book your free estimate at 410-796-1333.
Yes — storm damage repair is an established part of the business, covering wind, hail, and impact damage from minor leaks through major structural repair. Because the company is a licensed general contractor and registered home builder, one contractor can carry the entire scope of a storm rebuild rather than coordinating separate roofing, siding, and interior trades.
Free estimates, performed by the owner. Call 410-796-1333.