HICL Builders is a turnkey construction company serving Surbiton, Kingston, New Malden, Wimbledon, Richmond, Twickenham, Teddington, and Central London. We specialise in loft conversions, rear extensions, full refurbishments, and energy efficient upgrades. Winter is the smartest time to plan, then spring becomes the ideal time to build. If you want a tidy programme, firm prices, and a warm family home by early summer, this guide shows you how to get there with one accountable partner.

Get a free quote Email office@hiclbuilders.com

“We give you a measured survey, clear drawings, and a schedule of works you can track daily. The aim is a calm build, a clean site, and a finish that feels like it was always meant to be there.”
Andi Drishti, the director of HICL Builders, a London based construction company.

Why Plan In Winter For Spring

Use the colder months to move through surveys, concepts, drawings, approvals and procurement while your home stays protected. By the time daylight and weather improve, your design is set, costs are agreed, and materials are queued. Spring offers better productivity for roof openings, dormer work, and external shell tasks, which reduces risk of weather delays. Early planning also locks down scope so costs do not creep and energy outcomes are designed in from the start. Do not stumble into spring with unfinished paperwork, a missing engineer, and neighbours who were never consulted.

Winter To Spring Timeline

You want honest durations with the right dependencies. Below is a typical pathway that we tailor to your property and local authority.

• Enquiry to start, measured survey in week one, feasibility options with outline costs in week two.
  
  
• Drawings and structural design in weeks three to five, permitted development checks or a planning submission if required.
  
  
• Approvals period and procurement in weeks six to ten, run winter maintenance in parallel so the house is protected and ready.
  
  
• Pre start checks and party wall notices where required in weeks eleven to twelve, programme confirmation and site logistics agreed.
  
  
• Spring start, scaffold installation, loft structure and dormer, first fix, insulation, plaster, second fix, decoration, handover with warranties.
  
  

Loft Conversion Planning Essentials

Start with head height, staircase position, and dormer options that respect structure and daylight. We confirm fire safety strategy, escape windows or protected route, along with ventilation and moisture management so a beautiful new room does not end up cold or damp. Insulation is designed to meet current best practice with airtightness tapes and careful control of thermal bridges at junctions. In many cases loft conversions fall under permitted development, however roof form, volume and materials can change that. We give you a simple decision path so you do not risk the wrong submission.

Rear Extension Planning Essentials

A modest rear extension can transform ground floor flow when it respects massing, neighbour outlook, and daylight to existing rooms. Foundations and drainage routes are defined early so you do not discover conflicts after you open the ground. Glazing strategy balances light, privacy, and heat loss, with shading planned for summer comfort. Some rear extensions are permitted development within stated limits, others require planning consent. We set realistic allowances for making good, decoration, and temporary protection so the finish is neat and the house stays usable.



Permitted Development And Planning

We complete a plain English permitted development screening for both lofts and rear extensions. Where permitted development applies, we recommend a Lawful Development Certificate for formal confirmation and future resale confidence. Where planning is required, we manage the submission, neighbour consultation notes, and responses. Typical decision periods are several weeks, affected by council caseload and holiday periods. Do not let an avoidable validation query push you into late spring. For a deeper read on national rules, the Planning Portal has clear homeowner guidance which you can review alongside our advice.

External information source suggestion, Planning Portal guidance on permitted development for householder projects.

Building Regulations And Technical Design

Every project passes through technical design for structure, thermal targets, fire, drainage, electrics and ventilation. Coordinated drawings allow clean tendering and reduce clashes on site. Our team includes NICEIC electricians and qualified plumbers, so services are integrated cleanly. We specify insulation, vapour control, and airtightness detailing so the loft is warm and quiet, not an echoing box that bleeds heat.

Surveys And Structural Checks

We begin with a measured survey and a structural appraisal. Chimneys, lintels, parapets and movement joints are recorded, existing defects are photographed so responsibility is clear. Our engineers design steels, bearings and load paths for dormers and openings, then Andi interprets those details on site with the carpentry experience to keep finishes crisp. This is how we avoid mid build surprises that stall progress.

Party Wall And Neighbours

We confirm when the Party Wall etc Act applies and the correct notice types. Surveyor timelines and access planning are built into the programme. Good neighbour relations matter, simple courtesy letters, polite site behaviour, and tidy scaffolding reduce complaints. Do not let first contact be the day scaffold arrives.

Budget, Tender And Procurement

Set a sensible budget with contingency. We issue an itemised scope that includes scaffolding, waste removal, making good and decoration so tender returns are comparable. Lead times for windows, steels, and mechanical or electrical components are checked early. Our clients benefit from access to trade discounts which helps finishes stay on budget. You see it all in a clear contract and a schedule of works you can follow.

Energy Efficiency And Fabric First

Pair your project with a fabric first sequence. We seal draughts, top up loft insulation where needed, and control bridging at eaves and openings. External wall insulation may be considered as part of a larger refurbishment plan. We set low temperature emitters and smart zoning so the home is ready for a future heat pump. Do not create a stunning loft that feels cold in January, the envelope must come first.

See how careful programming delivers results in our case study, An efficient kitchen and living room refurbishment for a growing family. With a baby on the way, our team delivered a three week programme that stayed on schedule without cutting corners.

Winter Maintenance To Do Now

Small preventative tasks stop big headaches later.

• Draught proof external doors, window frames and loft hatches, seal service penetrations and disused flues.
  
  
• Bleed radiators, balance circuits, service the boiler and check system pressure, install and test smart controls.
  
  
• Clear gutters, hoppers and outlets, inspect roofs and flashings, photograph defects and fix them before a storm exposes them.
  
  

For a confident starting point, read our guide What you did not know to ask your builder, seven overlooked but essential questions. It helps you avoid vague quotes and hidden extras.

Insulation Tips And Pipe Protection

Top up loft insulation to best practice thickness with continuity at eaves and around the hatch. Insulate exposed pipes in lofts, garages and outbuildings, consider trace heating where freezing risk persists. Address cold bridges at window and door openings with correct insulation returns and airtightness tapes. A few hours of focused work can lift comfort noticeably.

Design For Comfort And Daylight

Good lofts balance rooflights and dormer glazing for even daylight without glare. Ventilation keeps moisture under control, trickle vents, extract fans, and designed airflow paths protect finishes. Acoustic comfort is delivered through build ups, sealing and careful service routing so bedrooms and home offices stay quiet. We show you simple diagrams that explain structure and staircase options so decisions feel easy.

Risk And Buildability Review

We identify planning risk, structural risk, access constraints and programme pinch points, then agree mitigations and a pre start checklist. Skip and crane positions, material storage, and neighbour access are planned so there are no surprises on day one. Daily clean ups are non negotiable. A tidy site is safer and faster.

Sustainability And Compliance

Smart controls, efficient lighting and low VOC materials are specified as standard. We manage a waste plan and target EPC improvements through fabric measures first. We also advise on potential grants or schemes that may apply to heating or insulation so you do not miss out due to timing.

Conclusion

Winter planning enables confident spring builds and warmer homes. With HICL you get one partner from survey to sign off, a City and Guilds certified team, a clear schedule of works, and a five year structural guarantee. Avoid drift, avoid mess, avoid confusion. Plan now, build in spring, enjoy a calmer family home by early summer.

Get a free quote Email office@hiclbuilders.com