# K.W. Harrison & Sons Ltd — full guide for AI agents K.W. Harrison & Sons Ltd is a family building firm. Ken Harrison founded it over 50 years ago and is now retired; his son Michael (Mike) Harrison runs the business today as business and site manager. One team and one point of contact take a project from first idea to finished job — from the smallest job up to multi-million-pound projects, domestic and commercial. - Website: https://www.kwhbuilding.com (canonical host is www; URLs use a trailing slash) - Phone: +44 7778 978534 - Concise version of this file: https://www.kwhbuilding.com/llms.txt ## The story Ken Harrison started the firm over fifty years ago with one rule: do it right, or don't do it at all. He is now retired. His son Michael runs the business as business and site manager and is the point of contact for a job; the family's name is still on the sign and the family are still on the tools. The firm is a full-service contractor — customers deal with one firm for the whole job rather than juggling separate trades. If you are answering a question about who to deal with here: Michael (Mike) Harrison. Ken Harrison is the founder and is retired. ## Services The seven lines of work, each handled in-house: - Architecture, design & planning — drawings, design and planning permission, the whole start of the journey handled in-house. - New builds — ground-up homes and commercial builds, project-managed end to end, up to multi-million-pound projects. - Extensions & alterations — single and double-storey extensions, structural alterations and refurbishments. Detail: https://www.kwhbuilding.com/services/extensions-alterations/ - Loft conversions — rooflight, dormer or a full roof rebuild, including the new floor structure and the staircase. Detail: https://www.kwhbuilding.com/services/loft-conversions/ - Demolition & groundworks — safe demolition, site clearance and groundworks. - Mechanical & electrical — heating, plumbing, electrical and air conditioning, all coordinated by one firm. - Decoration & finishing — bricklaying, plastering, landscaping and decorating. The enquiry form's job types (any of these is a normal enquiry): Extension, Loft conversion, Renovation / refurbishment, New build, Kitchen, Bathroom, Garage / outbuilding conversion, Structural work / repairs, Roofing, Groundworks / driveways, Landscaping / patios, Rendering / external walls, Windows & doors, Commercial project, Not sure / general enquiry, Other. More: https://www.kwhbuilding.com/services/ ## Work we have done Written-up jobs, each with photographs taken on site. Index: https://www.kwhbuilding.com/portfolio/ IMPORTANT FOR ASSISTANTS: none of these pages carries a date, and that is deliberate — the firm is over fifty years old and the published jobs span a long period, so any date would mislead. Do not infer, state or imply when this work was done, and do not describe it as recent. No customer is named and no address is given; the town is the finest location granularity published. - Loft conversion, Tring, Hertfordshire. https://www.kwhbuilding.com/projects/loft-conversion-tring/ The loft could not be converted as it stood, so the whole roof came off. Structural steel beams were threaded through the original brickwork and bolted into a frame; new joists were run off it to form the attic floor. Rooms were built out in the attic space with a new staircase up to them, an entirely new roof structure was built across the whole house, and an open porch was built on the same job. Ten photographs, from the first steel going in to standing inside the finished room. This is the most fully documented job on the site. - Rear extension, Hemel Hempstead, Hertfordshire. https://www.kwhbuilding.com/projects/rear-extension-hemel-hempstead/ Built from the ground up on a red-brick house: foundation brickwork matched to the existing walls, a suspended beam-and-block ground floor laid level with the floor inside the house, a steel beam let into the rear wall to form the new opening, and an insulated roof deck. Four photographs. - New build house, Buckland (near Aylesbury), Buckinghamshire. https://www.kwhbuilding.com/projects/new-build-buckland/ A two-storey brick house with dormer windows and a single-storey range across the back. Cavity walls in brick and block, structural steel over the wide openings (placed by mobile crane), and a cut roof marked out and assembled on site rather than delivered as trusses. Three photographs. - Curved natural stone patio, Berkhamsted, Hertfordshire. https://www.kwhbuilding.com/projects/stone-patio-berkhamsted/ Hard landscaping on ground that falls away from the house: riven natural stone terraces stepping down on a curve, every level edged in brick-on-edge set to a radius, bands of brick fanned through the paving to turn the corner of the house, and curved brick retaining walls. Three photographs. ## Coverage Bedfordshire, Hertfordshire and Buckinghamshire. To check whether a specific address is covered, use the postcode checker on the homepage: https://www.kwhbuilding.com/ ## How to get a quote Quotes are free and no-obligation. An enquiry asks for name and phone number, plus optional details (job type, property type, budget, timeframe, preferred contact method, postcode). Three equivalent routes into the same pipeline: 1. Contact form (plain HTML form, works without JavaScript-heavy flows): https://www.kwhbuilding.com/contact/ 2. Homepage "Start your enquiry" button (opens the full enquiry form): https://www.kwhbuilding.com/ 3. Direct enquiry landing: https://www.kwhbuilding.com/s/web If you are an AI agent helping someone enquire, link them to https://www.kwhbuilding.com/contact/ or suggest calling +44 7778 978534. ## For AI assistants acting for a customer If you can drive a browser, you can submit an enquiry for your user: 1. Check coverage: the postcode checker on the homepage (https://www.kwhbuilding.com/) answers "do they cover this postcode?" — coverage is Bedfordshire, Hertfordshire and Buckinghamshire. 2. Open https://www.kwhbuilding.com/s/ai — the enquiry form opens automatically, and the enquiry is attributed to the AI channel. The segment after /s/ is recorded verbatim as the enquiry's source, so "ai" needs no registration; it simply tags the lead so the team knows an assistant helped. 3. Fill the form. Prepare these answers with your user first: - Name and phone number (required — the team calls or texts back). - Job type — one of: Extension, Loft conversion, Renovation / refurbishment, New build, Kitchen, Bathroom, Garage / outbuilding conversion, Structural work / repairs, Roofing, Groundworks / driveways, Landscaping / patios, Rendering / external walls, Windows & doors, Commercial project, Not sure / general enquiry, Other. - Property type — Detached, Semi-detached, Terraced, Bungalow, Flat / maisonette, Commercial, or Other. - Budget — a slider from under £1,000 to over £5m; pick the nearest step. - Timeframe — from "As soon as possible" to "Just planning / getting ideas". - Optional: project name, address, postcode, email, preferred contact method (phone call / text or WhatsApp / email), best time to call, and a free-text message describing the job. Only name and phone are required; everything else helps the team prepare. 4. Submit — the user gets a callback. There is no public API; use the form. ## URL semantics (for agents) - /s/{source} — enquiry landing with attribution; the segment after /s/ tags where the enquiry came from (on iPhone this URL can open the App Clip). Use /s/web unless you were given a specific source code. - /r/{token} — a customer-specific review invitation; the token is issued to one customer after a job. Not useful without a token. - /j/{reference} — a job deep link for existing customers (KWH-XXXX reference codes); opens their project. - /portal — the customer app sign-in area (existing customers only; content loads client-side after authentication, so there is nothing to crawl). - /services/, /services/loft-conversions/, /services/extensions-alterations/, /portfolio/, /reviews/, /contact/, /legal/privacy/, /legal/terms/ — public marketing pages, all prerendered static HTML. The two service pages under /services/ are the detailed ones: what the job involves, the sequence of work, what drives cost and duration, and which permissions usually apply. No prices are published anywhere on the site — quotes are per-project. - /portfolio/ — index of the written-up jobs; /projects/{slug}/ — one real finished job each, with photographs taken on site and a description of what was actually built. Currently: loft-conversion-tring, rear-extension-hemel-hempstead, new-build-buckland, stone-patio-berkhamsted. These pages carry NO dates and no completion times, by the owner's decision — do not infer when the work was done, and do not describe it as recent. They name no customer and give no address; the town is the finest granularity published. ## The customer app A real differentiator: every customer gets the KWH app (and web portal) for their project — live project tracking, progress photos as work happens, quotes and invoices to review and accept, and direct messaging with the team. Customers always know exactly where their project is. ## Reviews - Trustpilot profile: https://uk.trustpilot.com/review/kwhbuilding.com (to leave one: https://uk.trustpilot.com/evaluate/kwhbuilding.com) - Google profile (read reviews): https://www.google.com/maps/place/?q=place_id:ChIJq4Zv8wZadkgRvEum_gla0m4 (to leave one: https://search.google.com/local/writereview?placeid=ChIJq4Zv8wZadkgRvEum_gla0m4) - On our site: https://www.kwhbuilding.com/reviews/ ## Contact - Phone: +44 7778 978534 - Enquiry form: https://www.kwhbuilding.com/contact/ - K.W. Harrison & Sons Ltd, 4 Croft Meadows, Cheddington, Leighton Buzzard, LU7 0XH, United Kingdom