Who are SEP?
Hello from the team at SEP! We are local local family business working across Lincolnshire to support homes and small businesses with energy solutions.
With over 250+ 5 star Google reviews, we are proud to have built a reputation on quality and consistency.
Starting out in 2016 focusing only on Gas Central Heating systems, over the years we have widened our offering to include Air Conditioning installation, Solar Energy PV and Battery Units, Windows and Doors, so that now we can truly support out clients with a full range of energy and home services.
Part of the Trusted SEP Family
Founded in 2016, SEP (which stands for Service Excellence Providers) is a local, family-run business built on strong values, quality workmanship, and outstanding customer service. What began as a specialist central heating company has grown into a trusted provider of complete home and energy solutions.
Today, SEP supports homes and small businesses with:
- Central heating systems
- Air conditioning installation
- Solar PV and battery storage
And we have recently added these services to our portfolio of services:
- Windows and doors
- Home improvement solutions
This growth allows us to offer a truly joined-up service, delivering practical, energy-efficient improvements under one trusted name.




Quality You Can Rely On
With over 300 five-star Google reviews, SEP has earned a reputation for consistency, reliability, and attention to detail.
By choosing SEP, you benefit from:
- A local Lincolnshire team you can trust
- Proven experience backed by genuine customer reviews
- High-quality products and professional installation and servicing
- The reassurance of working with an established, growing company
Some of our google reviews:
Ian Keitch, Jan ’26: An absolutely professional job undertaken efficiently and with courtesy. The engineers were clearly very experienced and kept me appraised on progress. They were exceptionally tidy in their working practices and cleaned up impeccably as they went along and at the end of each day. At the end of the job a comprehensive understandable explanation of the installation was provided along with instructions on usage. A trouble free experience from the initial survey through to completion. Good value for money. I would definitely use the company again and unreservedly recommend to others.
Shaun Jones, Dec ’25:Just had my baxi back boiler serviced, brilliant service from booking to completion. Engineer was on time, tidy and professional throughout. Would Happily recommend your company and will be using you again.
Brian Porter, Oct ’25: Excellent job mending our gas boiler and repairing a dysfunctional floor level heater. Ollie was very competent, helpful, informative, professional, friendly and polite. A delight! Welcome back any time we need a job doing.

