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Here's exactly what the assessor will check, what questions they'll ask, and how to prepare for your appointment.", "image": "/assets/installer-D2bbZsjM.jpg", "author": { "@type": "Organization", "name": "Alliant Energy" }, "publisher": { "@type": "Organization", "name": "Alliant Energy", "logo": { "@type": "ImageObject", "url": "https://alliantenergy.co.uk/logo.png" } }, "mainEntityOfPage": { "@type": "WebPage", "@id": "https://alliantenergy.co.uk/guides/warm-homes-plan-survey-what-to-expect" } }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://alliantenergy.co.uk/" }, { "@type": "ListItem", "position": 2, "name": "Guides", "item": "https://alliantenergy.co.uk/guides" }, { "@type": "ListItem", "position": 3, "name": "Warm Homes Plan Survey What To Expect", "item": "https://alliantenergy.co.uk/guides/warm-homes-plan-survey-what-to-expect" } ] }, { "@context": "https://schema.org", "@type": "Article", "headline": "What to Expect from a Warm Homes Plan Survey", "description": "Exactly what the assessor will check, what questions they'll ask, and how to prepare for your free appointment.", "image": "https://alliantenergy.co.uk/assets/installer-D2bbZsjM.jpg", "author": { "@type": "Person", "name": "Alliant Energy Team", "url": "https://alliantenergy.co.uk/about" }, "reviewedBy": { "@type": "Person", "name": "MCS Registered Engineer", "jobTitle": "MCS Registered Engineer" }, "publisher": { "@type": "Organization", "name": "Alliant Energy", "url": "https://alliantenergy.co.uk", "logo": { "@type": "ImageObject", "url": "https://alliantenergy.co.uk/logo.png" } }, "datePublished": "2026-01-15", "dateModified": "2026-05-19" }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Is the Warm Homes Plan survey free?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. The survey is completely free and creates no obligation to proceed." } }, { "@type": "Question", "name": "How long does the survey take?", "acceptedAnswer": { "@type": "Answer", "text": "Typically 1 to 1.5 hours for a standard three-bedroom property." } }, { "@type": "Question", "name": "Will the surveyor damage my walls or loft?", "acceptedAnswer": { "@type": "Answer", "text": "No. If a borescope is used to check cavity wall insulation, the process involves a small drill hole (~15mm) which is filled and sealed after inspection." } }, { "@type": "Question", "name": "What happens if I'm not eligible after the survey?", "acceptedAnswer": { "@type": "Answer", "text": "Alliant Energy will advise on alternative routes — Boiler Upgrade Scheme, private solar or the upcoming Warm Homes Fund." } } ] } ] --- [![Alliant Energy — Renewable Energy Solutions](/__l5e/assets-v1/3bd22195-cc6e-43e6-b5ff-5a808ce292d3/alliantenergyltd-2.svg)](/) [Home](/)[About](/about-us) [Services](/services) [Guides](/guides)[Case Studies](/case-study)[![Levelise](/__l5e/assets-v1/59fd362e-361a-47d7-ad1f-65e9beeb5289/levelise-logo.webp)](/guides/levelise-hub-explained) [01282 501589](tel:01282501589)[Get a Quote →](/quote) Warm Homes Plan · Survey # What to Expect from a Warm Homes Plan Survey Exactly what the assessor will check, what questions they'll ask, and how to prepare for your free appointment. By **Alliant Energy Team**· reviewed by MCS Registered Engineer Last updated 19 May 2026 [Check eligibility](/request-callback) [Call 01282 501589](/contact) On this page - [Who carries it out](#who) - [What the assessor checks](#checks) - [Questions they’ll ask](#questions) - [What happens after](#after) - [How to prepare](#prepare) - [FAQ](#faq) Ready to act? Free quote in one working day. [Get a Quote →](/quote) You've applied for the Warm Homes Plan and your survey appointment is coming up. Here's exactly what will happen — so you can prepare and get the most from the visit. After approval, our [solar panel installation](/services/solar) team handles the install. ## Who carries out the survey? The survey is conducted by a qualified domestic energy assessor (DEA), either employed by the delivery body (Cosy Homes in Lancashire) or by an approved installation company like Alliant Energy. The assessor is trained to evaluate insulation, heating, and EPC, and produce a tailored recommendation. The survey takes 1–1.5 hours, is free, and creates no obligation. ## What will the assessor check? ### 1\. Roof and loft The assessor accesses your loft to measure existing insulation depth and type. Standard new-build insulation is 270mm — many older homes have 100mm or less. ### 2\. Walls Wall type identified (cavity, solid brick, stone, timber frame). For cavity walls, a borescope may be used to confirm whether the cavity is filled — non-damaging. ### 3\. Heating system Boiler, heating controls, radiator sizes and hot water cylinder assessed. If a heat pump is being considered, a heat loss calculation is performed. ### 4\. Glazing and doors Window specification (single, double, triple) and external doors recorded. ### 5\. Solar roof assessment If solar is being recommended, roof orientation, pitch, shading and available panel area are evaluated. South-facing roofs between 30–40° are optimal, but east and west can still generate meaningfully. ## What questions will they ask you? - How many people live in the property? - How long have you lived here? - How do you currently heat the property? - Are there any rooms you don't heat? - Do you have any damp or condensation issues? - When was the boiler last serviced? - Do you have a copy of your latest EPC? Honest answers help produce an accurate recommendation — there are no wrong answers. ### Ready to book your survey? Alliant Energy arranges surveys across Lancashire and Greater Manchester. [Request a callback](/request-callback) [Contact us](/contact) ## What happens after the survey? The assessor produces a written report within a few days, including: - Current EPC rating and projected post-improvement rating - List of recommended measures - Confirmation of funding availability - Estimated energy bill saving after improvements Cosy Homes in Lancashire then issues a formal funding confirmation. Once accepted, installation is scheduled with an MCS-registered installer — such as Alliant Energy. ## How to prepare for your survey - Ensure loft access is clear - Have your most recent EPC to hand - Know your approximate household income - Note any recent work — new windows, insulation, boiler - If you have a smart meter, it's useful to have recent energy data ## Frequently asked questions ### Is the Warm Homes Plan survey free? Yes. The survey is completely free and creates no obligation to proceed. ### How long does the survey take? Typically 1 to 1.5 hours for a standard three-bedroom property. ### Will the surveyor damage my walls or loft? No. If a borescope is used to check cavity wall insulation, the process involves a small drill hole (~15mm) which is filled and sealed after inspection. ### What happens if I'm not eligible after the survey? Alliant Energy will advise on alternative routes — Boiler Upgrade Scheme, private solar or the upcoming Warm Homes Fund. Related Warm Homes Plan guides - [What is the Warm Homes Plan? ](/guides/what-is-the-warm-homes-plan) - [Check your eligibility ](/guides/warm-homes-plan-eligibility-2026) - [Apply in Lancashire ](/guides/warm-homes-local-grant-lancashire) Three ways to get started ## Ready to find out what solar saves you? Get a tailored quote in one working day. No obligation. No hard sell. Speak to a renewable energy engineer — not a salesperson — at a time that suits you. [Get a Quote → ](/quote) [Request a Callback →](/request-callback) [Download Brochure →](/brochure) Accreditations ## Certified, registered, and insured. Every time. MCS certification isn't a box-ticking exercise — it qualifies your system for Smart Export Guarantee payments and government grants. Our installers are also NICEIC-approved and TrustMark-registered, and every install is fully insured. ![Citation ISO Certification: ISO 9001 quality management, ISO 14001 environmental management and ISO 45001 occupational health and safety](/__l5e/assets-v1/180183cd-e6fd-4b0a-984c-83e6a41390d7/accreditations-iso.jpg) ![Alliant Energy — Renewable Energy Solutions](/assets/logo-IFrgP5Dc.png) Renewable energy & energy-saving specialists. MCS-registered solar PV, battery storage, heat pumps and EV charging across the UK. #### Quick Links - [Home](/) - [About Us](/about-us) - [Services](/services) - [Case Studies](/case-study) - [Areas We Cover](/solar-panel-quotes-north-west) - [Contact](/contact) - [Privacy Policy](/privacy) - [Terms & Conditions](/terms) #### Services - [Solar for Homes](/services/solar) - [Commercial Solar](/services/commercial-solar) - [Battery Storage](/services/battery-storage) - [Air Source Heat Pumps](/services/heat-pumps) - [EV Charging](/services/ev-charging) - [Energy Saving Advice](/services/energy-saving-advice) #### Contact - [01282 501589](tel:01282501589) - [info@alliantenergy.co.uk](mailto:info@alliantenergy.co.uk) - Unit 214 Northlight Industries, Pendle Road, Brierfield, Nelson BB9 5FL [Get a Quote](/quote)[Brochure](/brochure) Alliant Energy Ltd is an Introducer Appointed Representative (Financial Services Register No. 1020779) of Phoenix Financial Consultants Limited (Phoenix). Phoenix is a credit broker, not a lender. Phoenix is authorised and regulated by the Financial Conduct Authority (FRN: 539195), and offers finance from its panel of lenders. All finance subject to status and credit checks. © 2026 Alliant Energy Ltd. All rights reserved. [Privacy Policy](/privacy)[Terms & Conditions](/terms) MCS Registered · TrustMark · NICEIC [Chat with AI](/chat) [Call back](/request-callback) [Get a Quote](/quote) [Get a Brochure](/brochure) [Get a Quote](/quote) [Chat with AI](/chat)