Replacement Windows
in County Londonderry.
Replacement window programmes — single units to multi-property portfolios.
Replacement Windows
Delivered nationwide by S&K Group Limited. Free survey, fixed quote, fully insured.
Replacement Windows across County Londonderry.
Whether you're in central County Londonderry or the outskirts, S&K Group Limited delivers replacement windows to a consistent UK standard. Replacement window programmes — single units to multi-property portfolios.
Pricing is transparent. After the free site survey we provide a written, itemised quotation — materials, fabrication, installation, removal of existing fittings, waste removal, finishing trims. No mid-job extras unless the brief changes.
Replacement Windows in County Londonderry
- Free site survey across County Londonderry
- Written fixed-price quotation
- UK-fabricated, regulation-compliant
- One project manager throughout
- £10m public liability cover
- Manufacturer & workmanship warranties
Why County Londonderry clients choose S&K Group Limited.
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 County Londonderry site, take measurements and quote — no obligation, no hidden charges.
Established 2000
Twenty-five years of installed UK commercial trade work. Companies House registered. UK-fabricated.
No deposit on commercial
Established commercial accounts and contractors typically work to standard net payment terms.
Survey to handover in County Londonderry.
Free Survey
A senior installer attends your County Londonderry 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.
Replacement Windows in County Londonderry — common questions.
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.
Do you work in occupied retail or office buildings?
Routinely. We deliver phased installations, out-of-hours starts and weekend programmes in occupied County Londonderry sites — minimising disruption to operations, customers or tenants.
Are you insured to work on commercial premises in County Londonderry?
S&K Group Limited carries £10m public liability insurance. CSCS-carded operatives, full risk and method statements, and current insurance certificates are provided on request for all County Londonderry projects.
Do you provide free quotations for replacement windows in County Londonderry?
Yes — every replacement windows enquiry in County Londonderry starts with a free site survey and a written, no-obligation quotation. We don't charge for surveying or quoting.