Thermal Break Windows
across the UK.
High-performance thermal-break aluminium and steel windows.

Thermal Break Windows
Delivered nationwide by S&K Group Limited. Free survey, fixed quote, fully insured.
Thermal Break Windows from S&K Group Limited.
Choosing the right thermal break windows contractor in the UK matters. Here's why S&K Group Limited is the firm to call. High-performance thermal-break aluminium and steel windows.
S&K Group Limited fabricates components in our own UK facility, controls quality at every stage, and installs with our own employed teams — never sub-contracted labour. That accountability is why the UK clients return to us year after year.
What's included
- Free UK-wide site survey
- Written fixed-price quotation
- UK-fabricated, regulation-compliant
- One project manager throughout
- £10m public liability cover
- Manufacturer & workmanship warranties
- Aftercare nationwide
Why clients choose S&K Group Limited.
Working in live sites
Phased installs, out-of-hours work and disruption-minimised programmes for occupied the UK premises.
25-year warranties
Manufacturer-backed material warranties plus our own registered workmanship guarantee on every install.
Building Reg compliance
Part L, Part B, Part M, Part Q — current regulations built into every quote, not bolted on.
UK fabrication
Every aluminium, steel and glass component is manufactured in our own UK facility — controlled quality.
Fixed-price quotations
Written specifications and fixed pricing. No mid-job extras unless the brief changes.
Free site survey
We attend your the UK site, take measurements and quote — no obligation, no hidden charges.
Survey to handover.
From your first call to final sign-off — one team, one accountable approach.
Free Survey
A senior installer attends your the UK site — measures, photographs and discusses requirements. Typically within 5 working days.
Written Quotation
Detailed written quote with full specification, CAD where required, materials, finish options and clear timeline commitments.
Fabrication & Manufacture
Precision-manufactured in our UK facility. Quality-controlled at every stage. Lead times confirmed in writing.
Installation & Handover
Installed by our employed teams to schedule. Sign-off inspection, full documentation, warranty registration on completion.
Thermal Break Windows — common questions.
How far in advance do I need to book thermal break windows in the UK?
For non-urgent thermal break windows projects in the UK, 4-8 weeks is typical to fit survey, quote and fabrication windows. Emergency cover is available 24/7 for existing clients.
How quickly can you respond to an emergency in the UK?
Existing-client emergency call-outs in the UK are typically responded to within 4 hours during working hours, with 24/7 cover available on contracted accounts.
Do you handle planning and Building Regs?
Where applicable, yes — we'll advise on planning requirements (e.g. conservation areas, listed buildings) and ensure the specification meets current Building Regulations (Part L, Part B, Part M etc).
Can you work to my JCT or tender contract?
Yes. We work to JCT, NEC and CIS-registered contracts and are familiar with main-contractor procurement frameworks. References, financial accounts and accreditations available.
What warranties come with the installation?
Manufacturer warranties on materials (typically 10-25 years depending on system) plus our own registered workmanship guarantee. Documentation supplied on handover.
Thermal Break Windows in 76 UK counties.
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