Plumbing, Heating and Electrical Engineers in Stevenage

S C Duncan Heating, Plumbing & Electrical cover Stevenage, Hitchin, Letchworth and surrounding areas in Hertfordshire

Servicing & Repairs

An annual boiler service can provide peace of mind when it comes to looking after you and your family. SCD will carry out a full service to any appliances and also a system health check.

Boiler Installation

There comes a time when your appliance needs replacing and it can be a big expense. SCD are experts at boiler replacement and installations and you will save money with a new A rated boiler.

Heating Upgrades

Better smarter controls or just a sludged up system? The team at SCD can help with best advice on how to improve and maintain your central heating system.

Bathroom Installs

From Design to Install, from a tap to a shower SC Duncan carryout full bathroom installations. We work with you to ensure you get the best bathroom possible and offer a free no obligation design visit.


If there is water in it and it is in your house SC Duncan have all your plumbing needs covered, We are able to do everything from a tap washer to a whole house booster pump. All at fixed fair prices.


We have a dedicated team of electrical engineers who carry out EICR’s for landlords and everything else as far as your electrical needs. Full house rewires are completed on time with minimal fuss.

Satisfied Customers

See examples of our heating, plumbing and electrical work across Stevenage, Hitchin, Letchworth and wider Hertfordshire

Full House Plumbing - Harpenden

This job proves cheapest is not always best. The customer had a very tight timeframe to move in and needed a whole heating system, 2 new bathrooms and kitchen plumbing. SC Duncan were not the cheapest, but as we provided some great advice, support and had amazing reviews to back up our word the customer went with us. All was completed on time and to a great standard and we received a 5* review for it!

Full Heating System - Harlow

Our customer had a failed Warm Air Heating system and urgently needed to have a full new system installed the SCD team attended and surveyed the work. It is important the needs of the customer are met – so we understood the requirement to be efficient, reliable and costs effective. We put a 2 man team on the job and the system was done in no time and left one very happy warm customer.

Urgent Powerflush - Stevenage

Our local Stevenage customer had their system flushed about 2 years ago and this was not done properly. The system was not working properly and some radiators didn’t work at all. SC Duncan got the call 3 days before Xmas and arrived to do a powerflush using our extremely powerful CF90 machine and also with an inline magnacleanse to remove the muck. 7 Hours later the system was working and all of the radiators were too hot to touch – a great job and a happy customer.

Ask a question

Contact us now to get in touch with our heating, plumbing and electrical engineers based in Stevenage and covering all surrounding towns and villages in Hertfordshire.

Contact Us

Gas Safe No – 649755