Philadelphia Rowhome Renovations, Managed the Right Way

Gamma Contracting delivers kitchen, bathroom, and whole-home renovations across Philadelphia with proactive communication, weekly photo updates, and no surprises at the finish line.

About Gamma Contracting

Project-management-first renovations for Philadelphia rowhomes, backed by 22 years of combined experience.

Founded in 2017 by Marcus and Diane Okafor, Gamma Contracting focuses on older Philadelphia homes where careful planning matters as much as the finish work. The team has completed more than 140 residential projects across the city, from focused room remodels to full rowhome transformations.

Gamma combines commercial-style project management with residential craftsmanship: detailed scopes, transparent timelines, a dedicated project coordinator, and weekly photo updates so homeowners always know what is happening on site. The team is fluent in English and Igbo and especially experienced with plaster walls, aging infrastructure, and permit-heavy city projects.

Licensed, insured, and trusted across Philadelphia neighborhoods, Gamma backs qualifying projects over $5,000 with a 3-year workmanship warranty. If you need a contractor who communicates clearly and finishes strong, start the conversation here.

What Gamma Builds Best

Renovations and upgrades designed for Philadelphia homes, led with tight coordination and durable finish work.

🏚️

Basement Finishing & Waterproofing

Basement finishing and waterproofing that starts with moisture control before any finish work goes in. The result is usable lower-level space with better lighting, storage, comfort, and long-term durability.

🪵

Hardwood Flooring

Hardwood refinishing and installation that restores character while standing up to heavy traffic. Gamma helps match species, sheen, and transitions so floors feel cohesive with the rest of the home.

🎨

Interior & Exterior Painting

Interior and exterior painting with the prep work older homes demand. That means repairs, careful masking, and finishes selected to perform in lived-in Philadelphia spaces.

🧱

Drywall Repair & Plaster Restoration

Drywall repair and plaster restoration for cracked walls, patched ceilings, and surfaces that need more than a quick cosmetic fix. Gamma is comfortable working with the quirks that come with older city housing stock.

🌿

Decks & Patios

Deck and patio builds that make compact outdoor footprints more usable. Composite decking, pavers, benches, and lighting are planned together so the finished space feels integrated rather than pieced together.

🚪

Window & Door Replacement

Window and door replacement focused on fit, insulation, curb appeal, and trim quality. Gamma helps homeowners improve comfort without losing the character that makes older homes special.

📋

Permit Coordination

Permit coordination and drawing referrals for projects that need more than good craftsmanship. Gamma helps navigate L&I expectations, historical review, and the paperwork that keeps work moving.

Our Portfolio

See the quality transformations we deliver

Ready for Your Own Transformation?

Get a free estimate for your home renovation project

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What Our Customers Say

Don't just take our word for it - hear from our satisfied clients

⭐⭐⭐⭐⭐

"They kept us in the loop every single week with photos and updates. The kitchen looks incredible and they came in under budget."

— Sarah M., Fishtown

Kitchen Remodel

⭐⭐⭐⭐⭐

"We gutted a century-old rowhome and Marcus’s team handled every curveball. Professional from demo day to final walkthrough."

— Devon & Tanya R., Brewerytown

Whole-Home Renovation

⭐⭐⭐⭐

"Great tile work and the heated floors are a game changer. Only hiccup was a short delay waiting on a custom vanity, but they communicated well throughout."

— James L., Graduate Hospital

Bathroom Renovation

⭐⭐⭐⭐⭐

"Our neighbors keep asking who built our deck. Gamma’s attention to detail is next level."

— Angela P., Manayunk

Deck Build

⭐⭐⭐⭐⭐

"Went from an unusable, damp basement to a legit living space. Worth every penny."

— Robert K., Northern Liberties

Basement Finishing

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Frequently Asked Questions

Quick answers to common questions

Are you licensed and insured?

Yes. We are fully licensed (PA HIC Registration #: PA152991) and carry comprehensive general liability and workers' compensation insurance. Documentation is available upon request. Our team complies with all state and local regulations to ensure your project meets the highest standards of safety and quality.

How long have you been in business?

We have been serving Philadelphia city limits plus surrounding communities within 20 miles of City Hall, with large projects considered up to 35 miles. since 2017, building a reputation for quality workmanship and reliability.

Do you have references or testimonials?

Yes. Check our portfolio page or contact us for references from past clients. We are happy to connect you with homeowners who had similar projects.

What areas do you serve?

We primarily serve Philadelphia city limits plus surrounding communities within 20 miles of City Hall, with large projects considered up to 35 miles. and surrounding communities. Contact us to confirm if we service your specific location, as we may be able to accommodate projects in nearby areas.

Do you offer free estimates?

Yes. We provide free, no-obligation estimates for all projects. Fill out our quote request form or call to schedule a consultation at your convenience.

How does the estimate process work?

We schedule a visit, listen to your ideas, assess the space, and provide a comprehensive, line-item estimate outlining material and labor costs. There are no hidden costs — you understand exactly what is included.

How quickly can you respond to a quote request?

We typically respond within 4 hours. For urgent projects, indicate your timeline in the request and we will do our best to accommodate. You can also call us directly for immediate assistance.

Are your estimates fixed or subject to change?

Written estimates are fixed for the agreed scope. Changes in scope require a written change order with associated costs approved before work proceeds. If unforeseen conditions arise (like hidden damage behind walls), we communicate immediately for your approval.

How are your quotes calculated?

Our quotes are based on detailed project assessments including labor hours, material costs, permit fees, disposal fees, and project-specific factors. We provide transparent, written estimates with line-item breakdowns so you understand exactly what is included.

How do you price projects?

Pricing is based on project scope, materials, labor, site conditions, and timeline. We provide a detailed, line-item breakdown during consultation so there are no surprises.

What payment methods do you accept?

We accept Check, Zelle, Venmo, credit/debit via Square. Payment terms and schedules are discussed during the estimate process and outlined in your contract.

Do you require a deposit?

Yes. We require a 33% deposit before scheduling your project. This secures your spot on our schedule and allows us to order materials. The balance is due upon completion and satisfaction.

What is your payment schedule?

Typical schedule: deposit, progress payments at milestones, final payment upon completion. Specific payment terms are outlined in your contract. For larger projects, we offer structured milestone-based payments to help manage cash flow.

Are there any hidden fees?

No. Our quotes are transparent with no hidden costs. Any changes to scope are documented in writing with associated costs approved before proceeding.

How soon can you start?

Start times depend on current schedule. Most projects begin within weeks of contract signing. Spring and summer are our busiest seasons — contact us early for best availability on larger projects.

How far in advance should I book?

Smaller projects can often be scheduled within 1–3 weeks. Larger renovations may be booked weeks out. Contact us early for best availability, especially during spring and summer.

Do you handle permits?

Yes. We handle all necessary permits and ensure your project complies with local building codes. Our team is experienced in permit applications and inspections, saving you time and ensuring everything is done correctly.

Will my project meet local building code?

All work is performed in compliance with current local building codes and inspected at required stages.

Who will be my point of contact?

You will have a dedicated project manager from start to finish, coordinating all trades and ensuring a cohesive result. You deal with one professional team throughout.

How do you communicate project updates?

We maintain open communication throughout your project. Your project manager is available by phone and email. We provide regular updates, discuss key decisions, and are always available for questions. We can also use text messaging or our customer portal.

Request a Free Estimate

Tell us about your project and we'll provide a detailed estimate

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Schedule an On-Site Visit

Book an appointment to discuss your project in person

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