Case Study: How a Rotherham Homeowner Saved £6,000 by Spraying uPVC Windows Instead of Replacing Them

When a semi-detached homeowner in Rotherham started getting quotes to replace yellowed uPVC windows, the cheapest price came in at £7,500. ColourHaus sprayed all twelve windows and both door frames in Anthracite Grey for £1,350 including VAT. The result looked like brand new dark-grey aluminium. Here is exactly what happened and why uPVC spraying made financial sense.

The Problem: Faded, Yellowed uPVC on a Rotherham Semi

Over time, white uPVC turns yellow. UV exposure, temperature cycling and general weathering all play a role. Once it starts, no amount of cleaning reverses the discolouration. For this Rotherham homeowner, the windows on their 1990s semi-detached had reached that tipping point. The colour had shifted to a dingy, uneven cream-yellow that made the whole front of the house look tired.

The homeowner had three priorities. First, they wanted the property to look modern. Second, they did not want the disruption and expense of full replacement. Third, they wanted something that would last. Dark grey uPVC had become the look they admired in newer builds on their street, and they wanted the same result without paying for full window replacement.

After reading about professional uPVC spray painting and checking reviews, they contacted ColourHaus. Our team visited within two days and provided a fixed written quote on the day.

Why Replacement Was the Wrong Choice

Replacing uPVC windows is expensive, disruptive and wasteful when the frames themselves are still structurally sound. The cost of replacement comes from the manufacturing, delivery, removal of old frames and installation of new ones. None of that cost adds any functional value if the existing frames seal properly and the glass is in good condition.

In this case, the existing windows were double-glazed, sealed well and had no failed units. Every pane was clear. The only problem was cosmetic. Paying £7,500 to fix a cosmetic problem that a £1,350 spray job could solve would have been hard to justify. For a full comparison of the two options, see our guide to uPVC spraying versus window replacement costs in Yorkshire.

The Process: Step by Step

Professional uPVC spraying is not a simple paint-over job. The preparation stages are critical and cannot be skipped. Here is the exact process ColourHaus used on this property.

Step 1: Thorough clean. Every frame, sill and door surround was washed down with a specialist uPVC cleaner to remove all dirt, grease, algae and silicone residue. Silicone in particular will prevent paint from adhering and must be removed completely.

Step 2: Key and etch. The surface was abraded with a fine abrasive pad to break the surface tension and give the primer something to bite into. An etching solution was applied to chemically prepare the uPVC for adhesion.

Step 3: Adhesion primer. A specialist uPVC adhesion primer was applied. This is a different product to the primers used on wood or metal. It is formulated to bond with plastics and forms the foundation of the whole paint system.

Step 4: Flexible topcoat, two coats. RAL 7016 Anthracite Grey flexible topcoat was applied in two full coats with a flash-off period between them. The flexible formulation allows the coating to move with the uPVC as it expands and contracts in temperature changes, which is essential for long-term adhesion.

Step 5: Protective lacquer. A UV-resistant clear lacquer was applied over the topcoat to protect the colour and make the surface easier to clean.

For a complete explanation of the process and what colours are available, read our full guide to uPVC spray painting in Yorkshire.

The Result: Before and After

The before and after difference was dramatic. The yellow-tinted frames were completely gone, replaced by a smooth, even Anthracite Grey that gave the house an entirely different character. The dark colour made the white render of the house pop. Visitors to the property in the weeks that followed consistently assumed the windows had been replaced.

The homeowner commented: "Everyone thinks we've had new windows put in. A neighbour actually asked for the name of our window company. When I told them we'd had them sprayed they couldn't believe it. For £1,350 it is honestly the best money we've spent on the house."

To see the full range of colours available for uPVC, read our article on what colours you can spray paint uPVC.

Cost Comparison: Spraying vs Replacement

Option	Cost (inc. VAT)	Disruption	Waste	Guarantee
Full window replacement	£7,500 (cheapest quote)	High: 2 to 3 days, rooms exposed	All existing frames to landfill	10-year manufacturer warranty
ColourHaus uPVC spraying	£1,350	Low: 1 to 2 days, no removal	None	5-year written guarantee
Saving	£6,150	Far less disruption	Zero waste	Covered either way

How Long Will It Last?

A properly applied uPVC spray system, using the right primer and flexible topcoat, will last well over ten years in normal conditions. The ColourHaus system is backed by a 5-year written guarantee against peeling, flaking and adhesion failure. For a detailed look at longevity, see our article on how long uPVC spray painting lasts in Yorkshire.

The critical factor is preparation. A spray job that skips the cleaning, etching and priming stages will fail within months. This is why professional application matters. Consumer-grade spray paint applied without proper adhesion preparation is not the same as a professional system.

ColourHaus has been completing uPVC spray painting jobs across Yorkshire since 2015. Every job is carried out by trained applicators using professional-grade coatings and equipment. The 5-year guarantee is issued on every completed job.