Window and Door Installation Services: A Complete Guide to Fitting and Replacement
Window and door installation services cover the supply and fitting of aluminium, uPVC, wooden, and steel windows and doors for new builds, renovations, and replacements. Well-installed windows and doors transform a property’s appearance, security, energy efficiency, and comfort, while poor fitting causes draughts, water ingress, sticking frames, and security weaknesses. Professional installers measure precisely, prepare openings correctly, and fit units with proper alignment, sealing, and hardware so they operate smoothly for decades. This guide explains what window and door installation services include, what they cost in Kenya, and how to choose installers who deliver a perfect fit.
What Professional Window and Door Installation Services Include
A professional installer manages the entire process from measurement to final sealing, ensuring each unit is square, secure, weathertight, and operable.
| Service | Description |
|---|---|
| Site measurement and surveying | Precisely measuring openings and checking squareness before ordering units. |
| Product supply and sourcing | Providing aluminium, uPVC, wooden, or steel windows and doors from reputable manufacturers. |
| New window installation | Fixing frames, fitting glass, aligning, and sealing with appropriate anchors and sealants. |
| Door installation | Hanging internal and external doors, fitting locks, hinges, and ironmongery. |
| Sliding systems installation | Fitting sliding doors, windows, and tracks with smooth-running rollers. |
| Replacement and upgrades | Removing old units and fitting modern energy-efficient replacements. |
| Sealing and finishing | Applying weatherproof sealants, trims, and adjustments for airtight, watertight closures. |
| Lock and hardware fitting | Installing quality locks, handles, and security reinforcements. |
Estimated Costs of Window and Door Installation Services in Kenya
| Service or Item | Estimated Cost (KES) |
|---|---|
| Aluminium sliding window (per square metre, supplied and fitted) | 7,000 – 15,000 |
| uPVC window (per square metre, supplied and fitted) | 8,000 – 18,000 |
| Wooden internal door (supplied and fitted) | 8,000 – 25,000 |
| Steel external security door (supplied and fitted) | 25,000 – 80,000 |
| Aluminium shopfront door (supplied and fitted) | 40,000 – 150,000 |
| Installation labour only (per window) | 1,500 – 5,000 |
| Glass replacement (per square metre) | 2,000 – 6,000 |
| Lock and hardware fitting | 1,000 – 5,000 |
Disclaimer: The figures above are indicative estimates only, based on typical market rates for 2025–2026. Prices vary considerably with frame material, glass type, hardware quality, and opening design. Please always obtain a written, itemised quotation before ordering.
10 Frequently Asked Questions About Window and Door Installation Services
- Which window material is best for Kenya? Aluminium is durable and low-maintenance, uPVC offers excellent insulation and noise reduction, and wood provides classic beauty but needs maintenance.
- How long does installation take? A standard window takes one to three hours to fit; a whole house of ten to fifteen units is typically completed in one to three days.
- Why is professional measurement so important? Units made to inaccurate measurements either fail to fit or leave gaps that cause draughts, leaks, and weakened security; professionals measure openings at multiple points.
- Should windows have laminated or tempered glass? Laminated glass resists break-ins and reduces noise, while tempered glass is safer on breakage; many installations combine both.
- Can old wooden windows be replaced with aluminium? Yes, installers remove old frames, repair the reveals, and fit new units to existing structural openings with proper sealing.
- What causes windows to stick or draught? Misaligned frames, swollen timber, poor hardware adjustment, and missing seals are the usual culprits; correct installation prevents them all.
- How do I maintain new installations? Clean tracks and drainage holes, lubricate locks and rollers quarterly, and re-apply external sealant every few years.
- Do installations include removing old units? Most quotations include removal and disposal of old windows and doors; confirm this in writing to avoid surprise charges.
- What security features should external doors have? Insist on reinforced frames, multi-point or high-security cylinders, steel plates, and quality hinges rated for the door weight.
- What warranty should I receive? Reputable installers provide a 1 to 5-year workmanship warranty plus manufacturer warranties on frames, glass, and hardware.
Why You Should Choose a Verified Professional Service Provider
Windows and doors are used every day for years, and installation errors become daily frustrations and security gaps. A verified installer takes responsibility for measurements, meaning errors appear at their cost, not yours, and works to manufacturer specifications that preserve warranties. Verified professionals carry liability insurance for breakage during fitting, provide written contracts with clear timelines, and return promptly for adjustments. Before hiring, confirm the supplier brands they represent, inspect completed installations, and verify their measurement and fitting process. A perfect fit once is cheaper than repeated repairs forever; choose installers whose precision is proven.
Window and door installation services enhance comfort, security, and appearance when handled by precise professionals. Whether you are fitting out a new home or replacing ageing units, correct measurement and installation make all the difference. Engage a verified installer and enjoy smooth, secure, weathertight windows and doors for years to come.