The lender is offering 2.84% on a 5-year, fixed rate, standard buy-to-let mortgage at 75% loan-to-value (LTV), for properties with a D or E rated energy performance certificates (EPC).

It is also offering lower rates for fixed rate mortgage products at 65% LTV for standard new-build properties and flats above commercial dwellings with an EPC rating between A and C. 2.69% for a 5-year term and 2.50% for a 2-year term.

The company said it has lowered rates by between four and 20 basis points across its product range.

Paul Fryers (pictured), managing director at Zephyr Homeloans, said: “2022 is shaping up to be a year of opportunity for brokers to engage with their customers on the drive to increase the energy efficiency of rental properties as well as the significant remortgaging opportunity arising from maturing five-year, fixed-rate products.

“We’re able to reduce our rates and enhance the products available to brokers and their landlord clients to take advantage of these important market changes.”