Grant oil boilers are widely regarded as the best on the market thanks to their unrivalled combination of efficiency, reliability and long-term value. Engineered in the UK, each boiler is built using high-quality components and innovative Vortex technology, helping homeowners enjoy lower fuel bills and reduced emissions. With an extensive range of models to suit every property type, Grant consistently delivers dependable performance even in the toughest conditions. Their industry-leading warranties and multiple Which? Best Buy awards further reinforce Grant’s reputation as the top choice for homeowners looking for an oil boiler that will stand the test of time.
The Vortex Pro range has also been recognised as a Which? Best Buy for six consecutive years, highlighting its outstanding performance, durability and value for money. A recent award recognises Grant for their HVO compatible oil boilers, winning ‘Best Renewable Energy Product at the SEAI Energy Show .


Grant’s oil combi boilers provide instant hot water and efficient heating in one compact unit, ideal for homes wanting space-saving convenience without sacrificing reliability or performance.
Find out moreThe Grant Vortex Pro is one of the UK’s most efficient and reliable oil boilers, delivering exceptional performance and long-term savings for homeowners.
Find out moreThe Grant Vortex Eco offers affordable, dependable heating with excellent fuel efficiency, making it a smart choice for cost-conscious homeowners.
Find out moreGrant Boiler Specialists
Our fully trained Grant Oil Boiler specialists can install, commission repair and service all types oil boiler. Our engineers are OFTEC approved and can offer great guarantees for additional peace of mind.
“Total Energy Services are G1 Installers, Grant UK’s accredited installer scheme. As G1 installers, Total Energy Services can offer extended guarantees on the Grant oil boilers that they install including 5 year guarantees on the Grant Vortex range and 10 year guarantees on the Grant VortexBlue range (subject to T&C’s)
Grant Vortex Pro boilers are among the most efficient oil boilers on the market, achieving impressive efficiencies of up to 95%. This exceptional performance means homeowners can enjoy reduced fuel consumption, noticeably lower heating bills and a meaningful reduction in carbon emissions.
By using less fuel to deliver the same level of warmth and hot water, a Grant Vortex Pro boiler not only cuts running costs but also makes your home more environmentally friendly and sustainable.
Due to Grant’s extensive boiler range, we can select a oil boiler perfect for your home no matter the size. In fact their condensing boiler range is available in 63 models with outputs ranging from 12-70kW. Depending on the age and condition of your current boiler upgrading to a new Grant oil boiler can help save up to 25% on annual fuel bills.






Total Energy Services offer heating and plumbing services in the areas of Dorset, Somerset, Wiltshire and Hampshire including;
Blandford, Sturminster Newton, Shaftesbury, Gillingham, Wimborne, Sherborne, Cerne Abbas, Six Penny Handley, Wincanton, Portland, Weymouth, Tisbury, Swanage, Wareham, Templecombe, Dorchester, Salisbury, Fordingbridge, Bruton, Castle Cary, Poole, Bournemouth, Christchurch.
If you live outside these areas please contact us and we will be happy to advise you.
