Dilworth Building Company was an absolute pleasure to work with during our master bath remodel. Tim Dilworth has mastered the art of managing, scheduling, and respecting everyone involved in the project.  There is an obvious camaraderie and common work ethic among management and the subcontractors.  Tim worked directly with me in figuring out my vision for this modern bathroom in our historic stone carriage house.  I could not be happier.  The job was finished on schedule and Tim was always available for advice, laughs, and questions along the way.  I would highly recommend Tim and his crew for home renovations. Laurie & Mike C.

"Tim is a first rate builder. He is experienced, organized, and an excellent communicator. He has done two six figure projects for my Trust Co. client. Both were completely successful with regards to quality, schedule and cost. " Michael Avis


Customer Testimonials

William Powell Dilworth

John Dilworth

Tim Dilworth is a fourth generation Builder and has been providing high quality construction to customers on the Main Line and Philadelphia for 33 years. His work experience includes residential renovations & additions, estates, institutional & commercial projects. Tim’s work has received local and national recognition and has been published numerous times including Architectural Digest.
Residential Projects include Renovations, Additions, New Homes, Kitchens, Bathrooms & Small Projects.

Dilworth Building Company

Serving the Main Line & Philadelphia

Dilworth Builders served as the General Contractor for renovations to a house we purchased in late 2014.  We had plans to move into the home in March.  Tim Dilworth was proactive in generating and updating timelines for various contractors to replace windows, upgrade heating, electric, painting, stucco, siding, etc. We were most impressed with the management of the project and how really nice and accommodating his subcontractors were. There was slight hesitation in using a casual friend to manage the renovations - sometimes it’s best not to mix friendship with business, but Tim and his crew were very impressive and professional.  We are so happy with having Tim oversee the renovations and all the attention to detail. We enthusiastically endorse him!  Laurie & John


Dilworth Builders has been our go-to general contractor and builder for a number of years.  We owned a beautiful one hundred year old home that needed expertise and knowledge in keeping it up to date and functional, but still being mindful of its historic qualities.  Tim and his crew did just that. Tim was consistently organized, professional and honest.  We always knew exactly what was being done on the many jobs that he completed over the years, and we were always satisfied.  Dilworth Builders helped us keep our great old house lovely as well as safe.  We highly recommend them. 
SueEllen and Tom Clay

Erwin E. Dilworth Jr

Erwin E. Dilworth

Dilworth Family and a History of Building

Our family has been building since at least 1860. The invoice below was delivered by John Dilworth to Levi Morris, owner of Harriton House, on August 31st 1860.