1. Definitions & Scope of Agreement

In these Terms & Conditions, the following legal and operational terms shall carry the precise meanings defined below across all client engagements, contracts, estimates, site works, and correspondence:

"The Company" refers to London House Extension, a trading division of London Home Renovation Ltd (Company Registration Number 13787632), having its registered address at 14 Verity Cl, London W11 4HE, UK.

"The Client" (or "The Customer") refers to the homeowner, property owner, landlord, developer, freeholder, leaseholder, or designated legal representative instructing the Company to carry out architectural surveys, planning advice, structural engineering, house extension construction, loft conversions, or refurbishment works.

"The Operative" refers to any qualified engineer, architect, project manager, site manager, carpenter, bricklayer, plumber, electrician, surveyor, or trade operative appointed directly or indirectly by the Company to perform services on site or off site.

"Contract Documents" refers collectively to the formal written quotation, signed build contract, architectural working drawings, structural engineering calculations, Building Control application schedules, and any agreed written Variation Orders (VOs).

"Practical Completion" refers to the project milestone stage where physical construction work has been completed substantially in accordance with the Contract Documents, rendering the extension or converted space safe, weather-tight, and ready for client occupancy, subject only to minor cosmetic snagging items.

The Company reserves the absolute legal right to decline, refuse, or terminate project instructions at its discretion prior to formal contract signing. Once a formal contract is executed, all site works shall be managed and executed by qualified Company operatives or accredited specialist subcontractors under strict supervision.

2. Statutory 14-Day Cancellation Rights & Pre-Commencement Costs

Under the UK Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013, Clients possess a statutory right to cancel their service agreement without penalty within 14 calendar days starting from the date the initial deposit or contract instruction is confirmed.

If the Client requests or instructs the Company to commence preliminary services (such as site dimensional surveys, architectural CAD drafting, structural calculations, Thames Water build-over enquiries, or material pre-orders) within the 14-day cancellation window, the Client acknowledges and agrees that the Company is entitled to deduct reasonable costs incurred prior to cancellation from any refund. Deductions may include:

• Architectural & Engineering Fees: Time spent by surveyors, architects, and structural engineers conducting on-site surveys, feasibility assessments, CAD drawings, and structural beam calculations (£85.00 per hour plus VAT).
• Statutory & Third-Party Disbursements: Local Council planning application fees, Lawful Development Certificate submission fees, Building Control notification deposits, or Thames Water build-over approval fees paid to external authorities.
• Material Orders & Procurement: Non-refundable deposits or full payments committed to merchant suppliers for bespoke structural steel RSJs, specialist timber roof trusses, or custom aluminium bi-fold doors, including supplier restocking fees and haulage logistics.
• Site Mobilization & Scaffolding: Labour, transport, and equipment setup costs expended for temporary site protection, scaffolding erection, or waste skip positioning prior to cancellation notice.

To exercise your statutory right to cancel, formal written notice must be delivered to the Company containing your project reference number, full client name, property address, contact telephone number, and email address. Formal notices should be sent via email to info@londonhouseextension.co.uk or delivered by registered post to our registered office address.

3. Fixed Quotes, Estimates & Scope Variations

Initial budgetary estimates, online cost guidance, and preliminary site proposals represent non-binding technical evaluations based on early client briefs and visual inspections. Estimates do not constitute a fixed-price binding contract until full structural engineering calculations, working CAD drawings, Building Control specifications, and a formal written build contract are executed.

Where a formal written quotation is issued and accepted in writing by the Client, the total contract price remains strictly fixed for the specified scope of work, subject only to valid Variation Orders (VOs) arising under the following conditions:

• Client Design Changes: Written instructions from the Client requesting structural modifications, layout revisions, additional room fit-outs, or upgraded fixtures and finishes not included in the original contract schedule.
• Unforeseen Concealed Site Conditions: Discovery of hidden structural defects during excavation or strip-out, such as shallow unreinforced Victorian footings, unmapped underground sewers, compromised party wall masonry, concealed asbestos, or severe timber decay requiring engineered structural underpinning or lintel replacement.
• Material Market Inflation: Extraordinary market price fluctuations in raw commodities (structural steel, timber, insulation board, or copper) occurring when project commencement is delayed beyond standard quotation validity windows (30 days).
• Regulatory & Building Control Directives: Mandatory design alterations ordered by Local Authority Building Control inspectors, Conservation Officers, or statutory utility undertakers during active construction.

All variation costs will be itemized in writing detailing additional labour, materials, plant hire, and administrative overheads, and presented to the Client for signed approval before the variation work is initiated on site.

4. Milestone Payments, Invoicing & Default Interest

Project payments are structured according to a clear milestone payment schedule detailed in your main contract agreement. A typical house extension payment schedule includes defined stage disbursements:

• Milestone 1 (Contract Execution): Initial deposit upon contract signing for architectural detailing, structural engineering calculations, and material procurement.
• Milestone 2 (Groundworks Complete): Payment upon completion of site excavation, concrete footings, underground drainage installation, and slab pour inspection.
• Milestone 3 (Superstructure Watertight): Payment upon erection of cavity brickwork, structural steel RSJ framework, roof timber construction, and felt/batten waterproofing.
• Milestone 4 (First Fix MEP & Plaster): Payment upon completion of internal partition framing, electrical rewiring first fix, plumbing first fix, and full internal plastering.
• Milestone 5 (Second Fix Finishes & Snagging): Payment upon installation of joinery, sanitaryware, final electrical trims, second fix joinery, and joint snagging walkthrough.

Invoices are issued upon achieving each verified milestone and are due for immediate payment upon presentation. Payment may be made via bank transfer (BACS) or cleared electronic funds. Any invoice balance remaining unpaid after 7 calendar days from presentation shall accrue statutory late payment interest at the rate of 8% per annum above the Bank of England base rate, calculated daily until full payment is cleared.

The Company reserves the right to suspend all on-site build operations, delay material deliveries, and withdraw site trade personnel if any milestone invoice remains unpaid past the due date. The Company accepts no liability for project delays or weather exposure resulting from payment-related site suspensions.

5. Site Logistics, Working Hours & Delay Protection

Standard working hours for Company operatives and subcontractors on site are Monday through Friday from 08:00 to 18:00, and Saturday from 08:00 to 13:00 (quiet work only), excluding UK Bank Holidays. Noisy site operations involving heavy excavation, concrete breaking, or power tools are strictly confined to permitted local borough noise guidelines.

Estimated project duration timelines provided in the build contract represent operational target schedules established in good faith. While the Company employs rigorous project management to adhere to agreed schedules, target dates do not constitute time-of-the-essence contractual defaults.

The Company shall not be held financially liable for construction delays, extended preliminary costs, or client temporary accommodation expenses resulting from Force Majeure events or circumstances beyond our direct control, including:

• Extreme weather conditions (persistent freezing temperatures, torrential rainfall, storm flooding) preventing concrete curing or roofing works.
• Severe nationwide raw material shortages, supply chain blockages, or extended manufacturer lead times for specialist structural glazing or steelwork.
• Delays by statutory undertakers (UK Power Networks, Cadent Gas, Thames Water) in executing mains service connections or build-over inspections.
• Unavoidable Local Authority planning validation backlogs, historic building officer delays, or party wall dispute adjudications.

In the event of unavoidable timeline adjustments, the assigned project manager will issue prompt written progress reports outlining the causes and presenting an updated completion schedule.

6. Client Responsibilities, Site Access & Statutory Consents

The Client is responsible for ensuring continuous, safe, and unobstructed access to the property for Company vehicles, trade operatives, delivery lorries, and plant equipment throughout the construction period.

The Client must provide uninterrupted access to mains 240V electricity and clean running water supplies for construction use at the Client's expense. The Client is also responsible for clearing all personal belongings, furniture, carpets, and valuable items from working zones prior to site mobilization.

Before structural excavation or demolition commences, the Client must ensure that all statutory approvals and legal property consents are fully secured, including:

• Party Wall Act 1996 Compliance: Serving formal Party Wall Notices and securing signed Party Wall Agreements or Awards with all adjoining property owners.
• Freeholder & Leaseholder Approvals: Obtaining formal Licences to Alter from freeholders or managing agents for leasehold flat or maisonette alterations.
• Thames Water Build-Over Agreements: Obtaining formal consent for building over or within 3 metres of a public sewer.

All trade operatives, gas engineers, and electrical specialists assigned by the Company maintain appropriate professional accreditations (including Gas Safe registration and NICEIC electrical certification) and bear direct technical responsibility for certified specialist installations.

7. Contract Termination & Suspension Rights

Should the Client choose to cancel or terminate the build contract outside the statutory 14-day cancellation period, the Client shall remain fully liable to pay the Company for:

• All structural build work, trade labour, and management supervision executed up to the date of formal cancellation.
• All materials ordered, delivered, or custom-fabricated that cannot be returned to suppliers without cost.
• Subcontractor cancellation fees, plant hire demobilization charges, and a reasonable loss-of-profit fee calculated at 20% of the remaining unexecuted contract value.

The Company reserves the right to terminate the contract or suspend site works immediately upon written notice if the Client breaches essential terms, fails to pay milestone invoices within 14 days of due notice, acts aggressively toward site personnel, or denies reasonable site access to working operatives.

8. Defect Inspection, Snagging & Remedial Notice

Upon achieving Practical Completion of the build, a joint site walkthrough inspection will be conducted by the Client and the project manager to compile a formal agreed Snagging List of minor cosmetic items (e.g. minor paint touch-ups, door adjustments, or sealant trimming).

The Company commits to rectifying all agreed cosmetic snagging items within 14 working days of handover, subject to material availability. The Client agrees that minor cosmetic snagging items do not justify withholding final milestone payments or delaying practical completion sign-off.

Should any latent defect manifest following handover, the Client must provide prompt written notice to info@londonhouseextension.co.uk within 12 months of handover, detailing the nature of the issue and affording Company surveyors and insurers reasonable access to inspect and execute necessary remedial works.

9. Structural Guarantee & Warranty Exclusions

All structural foundation groundworks, load-bearing steel RSJ installations, cavity brickwork masonry, concrete floor slabs, and timber roof superstructures executed by London House Extension are protected by our comprehensive 12-Month Structural Workmanship Guarantee starting from the date of Practical Completion.

In addition, manufacturer warranties for installed products (such as flat roof GRP/EPDM membranes, boiler units, structural glazing, bi-fold doors, and daylight lanterns) are passed directly to the Client upon handover.

The Company's structural guarantee shall be rendered void under the following circumstances:

• The structural framework, load-bearing walls, electrical consumer units, or plumbing manifolds are altered, tampered with, or repaired by third-party builders without our written consent.
• The building suffers structural damage caused by client negligence, unapproved structural loads, internal flooding, severe ground movement beyond engineered footings, or failure to perform routine roof gutter cleaning.
• Natural hairline shrinkage or drying cracks appearing in new internal plasterwork, timber joinery, or concrete screeds due to natural drying and seasonal atmospheric changes.
• Second-hand or customer-supplied materials installed at the Client's explicit request experience failure or cause consequential damage.

10. Materials, Merchant Supply Chains & Subcontractors

All structural steelwork, engineering bricks, C24 timber, insulation boards, roof membranes, and building supplies deployed by the Company are purchased from certified British Standard (BS EN) compliant merchant suppliers. Product performance guarantees for individual building materials are underwritten directly by the respective manufacturers.

Temporary equipment deployed on site—including heavy scaffolding towers, rubbish skips, temporary site toilets, and hired machinery—remain the legal property of the Company or its contracted plant suppliers. Where scaffolding or skip hire extends beyond agreed build schedules due to Client-instructed variations or access delays, any additional hire fees shall be added to the Client's account.

Unless specifically agreed in writing for client retention, all demolished masonry, excavated subsoil, surplus timber, and construction debris will be cleared and responsibly disposed of by the Company in compliance with Environment Agency waste licensing regulations.

11. Retention of Title & Security of Goods

Legal title and ownership of all structural materials, steel RSJs, joinery items, glazing units, boilers, electrical fittings, and building supplies delivered to or installed at the site shall remain vested exclusively in London House Extension until all corresponding contract invoices have been paid in full by the Client.

Until full legal title passes to the Client:

• The Company reserves absolute legal right to repossess, remove, or sell any uninstalled materials or equipment where invoices remain unpaid past due dates.
• The Client grants the Company and its authorized representatives irrevocable licence to enter the property without notice to repossess unpaid materials or equipment.
• The Company reserves the right to seek court injunctions to restrain the Client from selling, transferring, or building over unpaid goods.

12. Governing Law, Amendments & Legal Jurisdiction

These Terms & Conditions, together with the executed build contract and agreed specifications, constitute the entire agreement between the Client and London House Extension, superseding all prior verbal promises, draft estimates, or informal representations.

No modification, waiver, or amendment of these terms shall be legally effective unless executed in writing and signed by a registered Director of the Company. If any individual clause is declared invalid or unenforceable by a court, all remaining clauses shall continue in full legal force.

This agreement and all construction contracts awarded to the Company are governed exclusively by the laws of England & Wales, and both parties submit to the exclusive jurisdiction of the Courts of England.

13. Business Protection & Intellectual Property

Clients instructing London House Extension agree not to solicit, bypass, approach, or directly hire any assigned architects, structural engineers, trade operatives, site managers, or subcontractors for private works without written consent from the Company during the project and for 12 months following practical completion.

Direct circumvention of Company contracts or unauthorized solicitation of assigned site personnel invalidates structural build guarantees, compromises insurance protections, and incurs a liquidating business protection fee of 30% plus VAT of the total project value to cover lost administrative, overhead, and procurement costs.

All architectural working drawings, 3D structural renders, design concepts, and engineering calculations produced by the Company remain the intellectual property of London House Extension until the project contract is fully executed and paid in full.

14. Official Company Details & Contact Notice

Trading Brand Name: London House Extension

Registered Company Name: London Home Renovation Ltd

Registered Office Address: 14 Verity Cl, London W11 4HE, United Kingdom

Company Registration Number: Registered in England & Wales No. 13787632

Official Email Contact: info@londonhouseextension.co.uk

Official Telephone Contact: 020 7477 2883