Marketing for HVAC Companies and Heating Engineers.
The first cold snap should fill the diary.

The repeat-business figure in the intro comes from the BEIS Heating and Cooling Installer Study, published in 2023: 687 employers in England replied from a sample of 22,460 (a 3% response), fieldwork ran from mid-October 2021 to mid-January 2022, and firms could give more than one answer. Alongside the 83%, 93% said they relied on word of mouth and 25% on online promotion. It records how those firms said they won work, not how customers search, and it is why autumn, spring and the quiet weeks below start with the list you already hold.

In England, 86% of households (21.2 million) used a gas fired main heating system in 2023-24 (English Housing Survey). In the UK, 75% of domestic gas use in 2024 was for space heating, and DESNZ says usage follows external temperatures and weather (DESNZ gas consumption statistics). In Great Britain, HSE strongly advises servicing gas appliances at least annually by a Gas Safe registered engineer (HSE); HSE words it as advice. In the US, ENERGY STAR tells homeowners to have the heating system checked in the fall, and notes that contractors get busy once summer and winter arrive.

Autumn lets you book heating services before emergency demand rises. The push goes first to everyone you served last year, by email, with real slots in your area and a booking link; search ads and a service page follow for new customers once the list has had first refusal. The capacity rule is simple: stop selling service slots before the diary has no room left for breakdowns. Two numbers show whether it worked: servicing slots booked ahead, and the share of last year's service customers who came back.

Google lists HVAC as an urgent Local Services category in the US, citing a heater that is broken in freezing temperatures; in practice, those listings bring breakdown calls that compete with agreement customers for the same engineers.

Winter tests the servicing you sold in autumn. Where your agreements promise priority, those customers' breakdowns are answered before new callers, so a cold morning starts from the agreement calls already waiting. New breakdowns from the search ads and listings take the engineer time left after that, and callers whose heating works but who want a service are offered the next service slot. Every breakdown visit to an ageing system also records whether a replacement quote should follow once the cold spell ends, so the larger job is not lost in the rush.

In Great Britain, the credential customers can check is the Gas Safe registration: HSE says engineers working on household gas appliances must be Gas Safe registered and competent in that area, and customers can check an engineer by the licence number on their ID card.

The IRS says the energy efficient home improvement credit, up to $3,200 a year, covers improvements made through 31 December 2025, and section 70505 of Public Law 119-21 is headed as the termination of that credit. For 2026 installs, a furnace or air conditioner page still promising it is out of date. State, utility and manufacturer rebates are separate; check each before it goes on a quote.

In England and Wales, gov.uk says a gas boiler and heat pump hybrid gets no grant under the Boiler Upgrade Scheme, so the scheme is no help to a gas boiler replacement offer. On 11 December 2024 the ASA ruled against a lead generator whose free boiler ads implied government backing and did not make clear it passed people's details to installers. A government-endorsed scheme that included boiler replacements did exist at the time; the breach was how the ads presented the advertiser. January is a good time to read every replacement page and lead partner's ad for offers like these.

ENERGY STAR advises checking the cooling system in the spring. In the US, 88% of households used air conditioning in 2020, and two-thirds relied on central AC or a central heat pump as their main AC equipment.

Spring's list is everyone with a cooling system on your books, offered a check-up before the first warm week, and the number of slots on offer is set by the engineers qualified to do the work. In Great Britain, engineers must hold their own qualifications to work on equipment containing F gas, and in the US, EPA's Section 608 rules require technicians who maintain, service, repair or dispose of equipment that could release ozone depleting refrigerants, and since 2018 most substitute refrigerants including HFCs, to be certified. The check-up page names those qualifications, and a check-up on an ageing unit is where a summer replacement quote can start.

Spring is also when a replacement page can explain the refrigerant change calmly. EPA's sector table, read on 5 October 2026, lists among other entries a 700 GWP limit from 1 January 2025 for residential and light commercial systems such as mini-splits and unitary systems, with no installation compliance date where every specified component was made or imported before that date. That page points to EPA's Technology Transitions Reconsideration Rule, so date whatever you state.

In 2020, space heating and air conditioning together were 52% of an average US household's annual energy use, and EIA calls those uses mostly seasonal. Summer repeats winter's order for cooling: agreement customers promised priority first, then new breakdowns.

What summer adds is the repair or replace decision, and the quote request is where the larger jobs sit. A short lead generation form asks the system type, rough age and whether it is running at all, so the right engineer rings back with the right questions. We read replacement quotes sent, quotes won and average replacement value, because a month of busy repairs can hide a weak replacement rate.

Reviews split the same way. The FTC's rule addresses, among other things, reviews that misrepresent that they are by someone who does not exist or who had no actual experience of the business, so every review comes from a real customer. A service customer reviews punctuality and tidiness; a replacement customer reviews the quote, the install and how the system runs. Ask each at the right moment, the service customer as the engineer leaves and the replacement customer after the first weeks of use, so the replacement reviews describe what a buyer is choosing.

The quiet weeks are for work that repeats. Focus groups in the installer study described repeat custom coming through boiler maintenance, servicing and repairs. Put that beside HSE's annual servicing advice and ENERGY STAR's pre-season check-ups, and a service agreement is the product that turns a one-off call-out into next year's autumn booking: one yearly visit or two, booked automatically, with a reminder before each season.

Repeat service income is the number to build the year around, because it is the part of the year you can plan. A firm that starts autumn with half its slots already sold through agreements spends its ad budget on new customers and emergencies, not on winning back its own. The marketing is a renewal sequence by email, an agreement page written in plain terms with schema markup and answers that answer engines can read, and an offer to every one-off customer after the job. Each month we count agreements signed, renewed and lapsed, and the service income they carry into the next season. We take on heating and cooling businesses in the UK and the US, work across both countries' time zones, and quote in GBP or USD.