Design. Build.
Remodel.
Harth Builders has been serving the residential renovation needs of homeowners in the Greater Philadelphia Area for decades. We have a commitment to quality, communication, and cleanliness.
Make Your Home Your Favorite Place
We are an award winning, family-owned renovation and remodeling business, with over 30 years of experience in the Greater Philadelphia Area. We have an outstanding team of experienced and service-minded employees and subcontractors.
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Services
Harth Builders' Acclaimed Services
Our team excels at enhancing the beauty and comfort of every room in your home, both inside and out, with a genuine commitment to authenticity and transparency.
Our Work
Projects
Kennett Square Custom Home
Lansdale Lower Level
Lower Gwynedd First Floor
Wyndmoor Office, Guest House and Cabana
Ambler Exterior Remodel and Pool Cabana
Ambler Primary Bath
Port Royal Reserve
Lower Gwynedd Primary Bath and Dressing Room
Society Hill Whole House
Philadelphia Family Room Addition
A Commitment to Excellence
Awards
There are reasons we have won so many industry awards, and they begin with our commitment to continuing education for our staff. All members of the Harth Builders team participate in ongoing professional education — to keep up with the latest methods, products and the most cost-efficient ways to build. We spend more than 200 hours a year at home shows, technical training, building seminars, and product expos. In other words, we work hard to stay at the top of our game.
Building Relationships
Customer Reviews
Frequently Asked Questions
Who is Harth Builders, and what are you known for?
Harth is a family-owned design-build remodeling firm based in Lower Gwynedd with a second location in Wayne. Founded in 1996 by Allyn Harth, it is now led by his son, Greg. Our in-house architects, designers, and craftsmen work together on every project, from kitchens and bathrooms to additions and custom homes while prioritizing communication, quality, and cleanliness. We’ve earned numerous local, regional, and national NARI Remodeler of the Year awards, and about a third of our projects come from repeat clients and referrals. Browse our portfolio to see the range of our projects firsthand.
Do you work in my area?
We focus on the Philadelphia suburbs, including the Main Line, Bucks County, Montgomery County, and Delaware County, along with Chestnut Hill and Mt. Airy in Philadelphia. We also serve South Jersey shore towns such as Brigantine, Margate, Ventnor, and Longport. We’ve spent 30 years remodeling homes throughout these communities and know the local permitting offices well. Not sure if we serve your area? Reach out and ask.
What does "design-build" mean, and will you work with plans from another architect?
Design-build means our architects, designers, project managers, and carpenters work under one roof on a single contract, from your first sketch through the final walkthrough. Because the same team designs and prices your project, you avoid falling in love with a design that turns out to be over budget or unbuildable. You also avoid being a middleman managing your own project. During the design phase, you’ll finalize the layout, finishes, and see a rendering of your finished space. This helps ensure the build process goes as smoothly as possible and avoids interruptions. See how it works in our ten-step process.
Additionally, we regularly join projects where a client has already worked with an outside architect, and we’re glad to collaborate to bring the vision to life.
What kinds of projects do you take on, and who's doing the work?
We handle kitchens, bathrooms, whole-house renovations, additions, outdoor living spaces, historic home restorations, exteriors, and aging-in-place remodels, plus custom homes and handyman services. Our own in-house carpenters and project managers stay on-site throughout your project, and we collaborate with trusted, licensed subcontractors and trade partners for mechanical needs like electrical, plumbing, and HVAC. To ensure streamlined and effective communication, your Harth project manager is your single point of contact.
How much will my remodel cost, and how long will it take?
Costs vary by project, but in our suburbs, a full kitchen or primary-bath remodel commonly starts in the upper-five figures, while additions and whole-house projects run into the six figures. Design typically runs 8 to 16 weeks, followed by 6 to 8 weeks of pre-construction including permitting, then construction timing is based on project size. We provide budget guidance throughout, and we’ve partnered with lenders for renovation financing based on your home’s after-renovation value.
Can I stay in my home during construction, and how do we get started?
In most cases, yes. We use dust-control walls, sweep daily, and vacuum weekly to keep your home livable, and we’ll help you plan for things like a temporary kitchen. For larger projects, a possible relocation may be necessary. Getting started begins with a consultation at your home, usually 45 to 90 minutes, where we talk through your goals, budget, and timeline.
Are you licensed and insured, and how do you handle permits and unexpected issues?
Yes. We’re a registered Pennsylvania Home Improvement Contractor, fully insured, and our team holds industry certifications including Certified Remodeler (CR), Certified Aging-in-Place Specialist (CAPS), and Environmental Protection Agency Renovation, Repair, and Painting (EPA RRP), among others. We manage all permitting, including with historic review boards common along the Main Line. Since many of the homes we work on were built decades ago, it’s not unusual to uncover old wiring or structural issues during demolition. When that happens, we pause and walk you through the cost and schedule impact before proceeding, so you’re never handed a surprise bill.