Best Landscape Architects and Designers near Thornton, CO
3 of these companies are based in Thornton; the others serve Thornton from towns including Denver (11 mi), Broomfield (6 mi) and Erie (12 mi).
10 open weekends · 19 rated 4.5+ · 2 show a license
Data verified October 27, 2026
COL Landscaping
Dreamscapes and Design LLC
Decktec Outdoor Designs
All Around Soil & Stone Inc.
Horizon Property Services
Listed for homeowners in and around Thornton, CO, these 24 companies draw plans for yards; the building is done by someone else. Portfolios, service descriptions and hours are taken from each company's own site, and the ratings beside them come from public reviews.

Area overview: Thornton, CO
22 of the 24 companies on this page have a rating, from 4.3 to 5.0 across 1,307 reviews; 11 have 50 or more reviews and 19 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise quality (91%), professionalism (89%) and responsiveness (85%). The topics that come up most in reviews of the companies on this page are "price", "communication" and "estimates". 10 are open on Saturdays and 1 on Sundays. The services the companies on this page list most often on their websites are hardscapes (2), hardscaping (2), landscape design (2), landscaping (2) and outdoor kitchens (2). 2 show a license on their websites and 9 have a BBB rating of A or A+. Domain records put 10 websites of the companies on this page at ten or more years old; the oldest dates from 2000. 3 offer financing or payment plans; 11 give free estimates; 1 is family- or locally-owned and 1 lists coupons or special offers. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Does a designer need to be based in Thornton?
An address in Thornton appears on 3 of the 24 listings; the rest sit within 20 mi. Distance matters less here than in the building trades, because most of the work happens at a drawing board. It still matters for site visits, and for knowing which plants survive a local winter.