Room Additions
Lee Mash Custom Remodeling provides room addition services in Houston.
We design and build additions that match your home’s style and structure, giving you the extra space you need without moving. Our team handles everything from design through final inspection for a stress-free process.
Our Room Addition Services
- Bedroom Additions
Create a private retreat with closets, lighting, and full comfort.
- Family or Living Room Extensions
Add space for entertaining and relaxing with friends and family.
- Home Office or Study Rooms
Design productive, comfortable workspaces with natural light.
- Multi-Room Expansions
Extend multiple rooms or add entirely new wings.
- Bathroom Additions with Rooms
Include full or half baths in your new space for convenience.
Featured Projects
Our gallery shows room additions that look like they’ve always been part of the home—inside and out.
Testimonials
Valued Clients
The addition matches the original house perfectly—inside and out.
Amand L.
We now have the home office we always needed, and it blends beautifully.
Peter P.
They kept to the schedule and the site was always tidy.
Tom K.
Room Addition Installation Process
- Site prep and protection of existing home
- Foundation and structural work
- Framing, roof tie-in, and sheathing
- Rough plumbing, electrical, and HVAC
- Windows, doors, and siding install
- Insulation and drywall
- Trim, paint, and flooring
- Final inspection and walkthrough
Benefits of a Professionally Built Room Addition
- Increases square footage and home value
- Seamless exterior and interior integration
- Code-compliant construction and permits
- Custom layouts for your needs
- Faster completion with in-house design and build
Room Addition Design Process
- Consultation to define goals and budget
- Layout and elevation design
- Exterior finish and interior detail selections
- Itemized cost estimate and schedule
- Final plan approval
Our Maintenance Guides
- Regular cleaning tips
Maintain flooring and finishes according to product guidelines.
- Exterior care
Inspect siding, roofing, and gutters near the addition annually.
- HVAC maintenance
Change filters regularly and balance airflow to the new space.
- Seal maintenance
Check caulk and weatherstripping for air and water tightness.
Why Choose Us?
- Over 3,200 projects completed
- A+ BBB rating and Goldstar Award for service
- Experienced crews with years of continuity
- Licensed trade partners for plumbing, electrical, and HVAC
- Daily on-site presence until project completion
FAQs
How long does a room addition take?
Most take 8 to 12 weeks depending on complexity.
Can you match my home’s exterior?
Yes, we match roofing, siding, trim, and paint to blend seamlessly.
Do you handle permits?
Yes, we take care of all permitting and inspections.
Can you add a bathroom with the addition?
Yes, we can include full or half baths in the design.
Will the addition be energy efficient?
Yes, we build to meet or exceed local energy codes.
Get Started Today
Lee Mash Custom Remodeling delivers room addition services in Houston. Get the extra space you need with a design that feels like it’s always been part of your home.
Our Address
Lee Mash Custom Remodeling
2142 Almond Creek Lane, Fulshear, Texas 77423
Call or Text
Submit Online Form
Start date typically within 3–5 days
Maintenance Tips • Additional Services • Operational Safety Tips
Maintenance Schedule
| Maintenance Task | Frequency | Instructions |
| Exterior Inspection | Annual | Check siding, roofing, and gutters |
| HVAC Filter Change | Quarterly | Replace filters to maintain airflow |
| Caulk/Seal Check | Semiannual | Inspect and replace as needed |
| Paint Touch-Ups | As needed | Address chips and fading promptly |
| Foundation Check | Annual | Look for cracks or settlement |
Room Addition Applications • Common Features
| Room Addition Applications | Common Features |
| Bedroom | Closet, lighting, ceiling fan |
| Family Room | Open layout, large windows |
| Office | Built-in desk, shelving |
| Multi-Room | Shared HVAC, cohesive design |
| Addition with Bath | Plumbing fixtures, ventilation |
Safety Aspect • Description • Precautions/Recommendations
| Safety Aspect | Description | Precautions / Recommendations |
| Structural Safety | Strong framing, proper loads | Use engineered plans; follow codes |
| Electrical Safety | New circuits and lighting | Licensed electricians; GFCI where needed |
| HVAC Safety | Balanced airflow | Size system correctly; service regularly |
| Weatherproofing | Prevent leaks | Use flashing, sealants, and WRBs |
| Site Safety | Protect occupants | Isolate work areas; keep clear walkways |