About KeystoneProGuide

KeystoneProGuide is a directory of home-service businesses in Pennsylvania. It is published by Emma Marketing.

Who owns what

The publisher also owns some of the businesses listed here. Each one is labelled "A KeystoneProGuide company" on its profile and wherever it appears in a list. The label means the business has the same owner as KeystoneProGuide. They follow the same rules as every other business.

• Air Duct & Vent Cleaning
• Conshohocken Duct Cleaning
• Ducts & Vents Cleaning of Exton
• E Cleaning Duct & Vent Cleaning
• The Air Duct Cleaning Pros
• West Chester Air Duct Cleaning

How listings are ordered

Every list uses one score built from rating, number of reviews, state registration on file, years in business and whether the owner answers reviews. Nobody can pay to move up.

Labels

Unclaimed means the business has not confirmed its details with us. Verified means the owner has confirmed them.

For business owners

A listing is free. If your business is not here, use Add your business. If it is already listed, open its page and choose "Claim this listing".

A claimed listing is marked Verified, and its website link becomes a regular link that search engines follow. We confirm a claim by sending a code to an email address at the business's own website domain. Any other request is checked by our editors.

Google ratings

Some listings show a Google rating. It is the rating on that business's own Google profile on the date shown, copied by our editors, with a link to the profile. Any verified business can show one. It does not change the order of any list, and it is separate from reviews written on KeystoneProGuide.

Our guides

Our guides are compiled from the public sources listed in each guide, with the help of AI writing tools. They do not rank or recommend businesses.

Data sources

Some listings start from the open Places data published by the Overture Maps Foundation. That data comes from several providers: Meta, Microsoft, BrightQuery, Uberall and DAC under the CDLA Permissive 2.0 licence; Foursquare under the Apache License 2.0 (Copyright 2024 Foursquare Labs, Inc. All rights reserved. See the Foursquare notice); and AllThePlaces under CC0 1.0.

We changed the data: we kept only home-service businesses in the areas we cover, sorted them into our own categories, merged duplicates and left out entries we could not trust. Owners and our editors correct listings after that.

Town and ZIP code data comes from GeoNames under the Creative Commons Attribution 4.0 licence.