Save Up to 80%: Anthracite Grey UPVC Spraying for UK Homeowners
Professional anthracite grey UPVC spraying is a cost-effective way to update tired windows and doors without replacing the frames. For sound UPVC, a properly prepared and sprayed finish using a 2K polyurethane system can last well over a decade, provided the contractor follows recognised safety controls and surface preparation steps throughout.
TL;DR:
Proper surface preparation and using a 2K polyurethane system are essential for ensuring UPVC spray finishes last over a decade.
Costs vary from £50 to £150 per window and £150 to £350 per door, with bundling multiple items lowering the average price.
RAL 7016 is the standard anthracite grey, but colour accuracy benefits from physical samples and test panels before full spraying.
Spraying is suitable only for sound, non-mechanical frames with no signs of structural damage or moisture ingress.
Hiring experienced contractors with proper safety controls, guarantees, and detailed preparation is critical to a durable, safe finish.
Table of Contents
Typical UK costs and what affects price
Budgeting for a respray starts with understanding how contractors price the work. Costs scale with the number of openings, the complexity of the frames, and whether you bundle items into a single visit.
As of 2026, whole-house packages typically run between £800 and £3,000, while single windows cost between £50 and £150 and single doors between £150 and £350, with the final figure shaped by size, access and the number of openings involved.
Single items cost more per unit because setup, masking and site protection are largely fixed costs regardless of how much is sprayed.
Bundling windows and doors into one job spreads that setup cost across more surface area, lowering the average price per item.
Whole-house packages offer the best value when several frames need attention at once.
Spraying is also considerably cheaper than replacing frames outright: on an average semi-detached home, spraying costs roughly 70 to 80% less than fitting new UPVC units, which is why it has become the default option for homeowners who simply want a colour change rather than new glazing.
Colour specifics: RAL 7016, alternatives and finish choices
“Anthracite grey” is not a single shade, it is a specific reference point. Most UK suppliers and installers use RAL 7016 as the standard definition of anthracite grey, and it is worth asking any contractor to confirm this code before work begins.
RAL 7016 is the industry-standard anthracite grey, commonly approximated on screens as #4B5054 or #353C40, though physical RAL samples remain the reliable way to check colour rather than a digital swatch.
RAL 7021, black grey, is a noticeably darker alternative for homeowners who want more contrast against render or brickwork.
Finish matters as much as colour: a matt finish reads flatter in direct sun, while satin reflects more light and can appear a shade lighter on a bright south-facing elevation.
Light changes how a colour reads throughout the day, so ask for a small test panel or sample swatch on your own frames before committing to a full respray. The RAL Classic reference confirms 7016 as the established anthracite designation, with RGB and CMYK conversions for anyone matching paint to existing hardware or fascias.
Is spraying suitable for your frames or do you need replacement?
Spraying changes colour and refreshes minor surface wear, it does not fix a frame that has failed mechanically. Knowing which category your windows or doors fall into saves you from paying for cosmetic work that will not solve the underlying problem.
Sound seals and weatherstripping around the frame indicate the UPVC itself is intact and a good candidate for spraying.
No blown or misted double-glazed units confirms the sealed unit is still doing its job, since spraying only addresses the frame, not the glass.
Hardware that opens, closes and locks properly suggests the mechanical parts are healthy, leaving only the visible finish to update.
Chalky, faded or scratched surfaces with no deeper damage are exactly what a respray is designed to correct.
Structural warping, cracking or bowing in the frame points to replacement rather than a cosmetic fix, since paint cannot restore lost rigidity.
Moisture ingress or rot around the frame edges (more common on composite or timber-UPVC hybrid installations) signals a problem spraying will only mask temporarily.
Persistently failed double-glazing, where units have misted internally, will not improve with a respray and should be addressed separately or alongside a decision to replace.
A guide to assessing whether a UPVC door needs spraying or replacing covers this distinction in more detail for doors specifically, where hinges and locking mechanisms often decide the outcome as much as the surface finish. The general principle holds across windows and doors alike: spraying restores appearance and minor surface condition, it cannot repair a mechanical or structural fault, and a contractor should tell you honestly when a frame is a poor candidate rather than take the job anyway.
Surface preparation and the professional spraying process
The quality of a sprayed finish is decided long before any paint is applied. A rushed or skipped preparation stage is the most common reason a respray fails early, and it is worth understanding the steps so you can judge whether a quote reflects proper practice.
Deep cleaning and degreasing removes dirt, silicone residue and atmospheric grime that would otherwise stop paint from bonding.
Mechanical abrasion or scuffing creates a physical key on the UPVC surface, since the material is naturally smooth and glossy.
Masking and protection covers glazing, handles, brickwork and nearby surfaces to keep overspray off anything that is not being painted.
Adhesion promoter or primer, where the system requires it, improves the bond between the UPVC substrate and the topcoat.
Application of the 2K polyurethane topcoat is done in controlled passes to achieve even coverage and colour depth.
Curing and final checks confirm the finish has hardened correctly before the area is unmasked and handed back.
Each stage exists for a reason. Degreasing removes the oils and contaminants that would otherwise sit between the paint and the frame, and the mechanical key from abrasion gives the coating something to physically grip rather than relying on adhesion alone. Skipping either step is a common cause of early peeling, which is why a detailed guide to UPVC respraying technique puts as much emphasis on preparation as on the paint itself.
Masking is also a practical logistics question, not just a tidiness one. Contractors need to protect glazing units, nearby render or brickwork, and any planting close to the work area, and how efficiently they do this affects both the finish quality and the time on site. This is part of why bundling several windows or a full house into one visit lowers the average cost per item: the masking and setup effort is shared across more surface area rather than repeated for each opening. A related principle applies to preparing surfaces before any spraying work, where the same logic of cleaning, protecting and sequencing the work determines how well the final coat holds up.
Pro Tip: Ask your contractor which primer or adhesion promoter they use on UPVC specifically, not just what topcoat they apply, since the bond beneath the colour is what determines how long it lasts.
Health, safety and HSE guidance for spraying
Anthracite grey UPVC spraying almost always involves a 2K, isocyanate-containing paint system, and this is not a cosmetic detail, it is a genuine occupational health issue. The HSE’s guidance on isocyanate paint spraying explains that these paints create an invisible airborne mist during application, and inhaling it repeatedly is linked to occupational asthma.
Because of this, the guidance sets out that spraying should happen in a controlled environment rather than in the open air, with specific exceptions for particular low-volume application methods.
Local exhaust ventilation or a spray booth/room captures overspray and mist rather than letting it disperse into the surrounding air.
Air-fed breathing apparatus protects the operator directly, since general ventilation alone is not considered sufficient protection from isocyanate mist.
Clearance-time testing, often using smoke or fog tests, confirms the space is safe to re-enter before anyone works unprotected nearby.
Maintenance and records for extraction equipment and booths are part of demonstrating the controls are actually working, not just installed.
HSE guidance restricts outdoor spraying of isocyanate-containing paints except for specific SMART repair techniques, with detailed controls set out for spray booths and rooms covering booth design, negative pressure operation and clearance testing. This is precisely why DIY UPVC spraying with a shop-bought 2K kit in a garden or driveway carries real health risk: without extraction, breathing protection and a controlled space, the operator is exposed to airborne isocyanate mist with none of the safeguards the guidance describes. These controls also explain part of the cost structure quoted earlier: a contractor running a properly equipped booth or using mobile extraction and RPE is carrying overheads that a cut-price, uncontrolled job simply is not.
How to choose a contractor: questions, quotes and red flags
Picking the right contractor matters more for UPVC spraying than for most painting jobs, because the paint chemistry and preparation standard decide whether the job lasts five years or fifteen.
Ask how much UPVC-specific spraying experience they have, since the preparation and paint systems differ from standard masonry or woodwork painting.
Ask which paint system they use and whether it is a 2K polyurethane product, then request the data sheet to confirm the chemistry.
Ask for a written guarantee, ideally covering peeling or major colour failure over a stated period, rather than a verbal assurance.
Ask about insurance, including public liability cover, before any work starts on your property.
Ask to see examples of completed local projects, ideally ones you can view in person rather than only in photographs.
A proper quote itemises preparation, materials, labour and any travel costs separately, rather than quoting one lump sum with no breakdown. Written guarantees carry more weight when stated on the invoice or issued as a separate certificate, and it is reasonable to ask whether the guarantee is transferable if you sell the property.
Treat a few things as clear warning signs: a very low price attached to a vague scope of work, reluctance to provide COSHH data sheets or confirm the paint is isocyanate-based, and no written guarantee at all.
Pro Tip: A contractor who is confident in their preparation process will usually offer to show or explain it unprompted, since it is the part of the job that actually determines whether the finish lasts.
Timeline and what to expect on the day of work
A single window or door typically takes a few hours from masking through to spraying and initial handover, while a whole-house package can run across one to several days depending on the number of openings and the weather.
Preparation (cleaning, abrasion, masking) usually takes as long as the spraying itself, sometimes longer on heavily weathered frames.
Clearance time after spraying, before the area is safe to unmask and approach without protection, is built into the schedule rather than skipped for speed.
Curing continues for some time after the surface feels dry to the touch, so avoid touching or cleaning fresh paintwork too soon.
Contractors may stage larger jobs across a property, working through sections so that ventilation and clearance requirements are properly managed rather than rushed. On your side, clear access to the windows and doors being sprayed, move pets and remove nearby plants or garden furniture that could be affected by overspray, and expect glazing to be masked rather than removed. A tidy, accessible site on the day generally means a faster, cleaner job.
Local proof: A Brush With Gus services, experience and homeowner evidence
A Brush With Gus operates across Cornwall and the South West, offering UPVC spraying alongside airless spraying, exterior home painting and cleaning, and interior decorating work. As a family-run business, the firm positions itself around clear communication, reliability and finishes intended to last, rather than the lowest price on the street.
The company’s site includes project photography and homeowner reviews that let prospective clients see actual completed work rather than stock imagery, along with homeowner-facing guides covering what UPVC spraying involves and how to judge preparation quality. If you are weighing up a respray against replacement, reviewing a completed portfolio and asking for a written quote and guarantee gives you a concrete basis for comparison rather than relying on a sales pitch alone.
Environmental considerations and disposal regulations for paint and materials
2K polyurethane paints and their hardeners are classed as hazardous waste once mixed, used or out of date, and they cannot simply go into a household bin or down a drain. Contractors are expected to store, transport and dispose of paint waste, masking materials and empty containers in line with UK hazardous waste rules, which typically means using a registered waste carrier rather than general refuse collection.
Overspray control also has an environmental dimension alongside the safety one: capturing mist in a booth or with local extraction keeps solvent and isocyanate particles out of the surrounding air and garden, rather than letting them settle on soil, plants or a neighbour’s property. Offcuts of masking film, tape and protective sheeting generate a reasonable amount of waste on a full-house job, and a competent contractor will remove this from site rather than leaving it for the homeowner to deal with.
Reputable roofing and exterior trades face similar obligations when working with sealants and coatings, and coordinating exterior work such as roofing maintenance alongside a respray is worth planning together so waste collection and access arrangements are not duplicated across separate visits. Asking a contractor how they handle paint waste and container disposal is a reasonable question, and a straightforward answer is a good sign of a properly run operation.
Maintenance advice post-spraying to preserve finish quality
A sprayed finish needs very little upkeep, but a few habits noticeably extend its life. Regular washing with warm water and a mild detergent, done a few times a year, removes the grime and salt deposits that dull a finish over time, particularly in coastal parts of the South West.
Avoid abrasive cleaners, solvents or stiff brushes on the painted surface, since these can dull the topcoat or create fine scratches that catch dirt. Check seals and drainage channels periodically to make sure water is not pooling against the frame, since standing moisture is more likely to cause problems at the edges of a sprayed finish than the coating itself failing. Touch-up paint matched to the original RAL code, kept on hand from the original job, deals with small chips from accidental knocks before they become a larger patch of bare UPVC exposed to weather.
What this guide gets right that most advice misses
Most UPVC spraying content online treats it as a simple colour swap and skips the two things that actually decide whether it works: what is under the paint, and what is in the paint. Preparation quality and paint chemistry matter far more than the marketing photos of a finished anthracite grey window, yet they are consistently underweighted in favour of “before and after” imagery.
The isocyanate safety question deserves more attention than it typically gets. Plenty of homeowners assume a “professional-grade” 2K kit bought online is safe to use in a garage or driveway, when the HSE’s own guidance is clear that outdoor spraying of these products, outside specific low-volume exceptions, is not how they should be applied. That is not a reason to avoid anthracite grey UPVC spraying, it is a reason to hire someone who treats the extraction, breathing protection and clearance testing as non-negotiable parts of the job rather than optional extras.
If you take one thing from this guide, let it be this: judge a quote by its preparation detail and its paperwork, not by its price alone.
— Angus
Getting a written quote for your UPVC spraying project
A Brush With Gus provides on-site quotations for UPVC spraying across Cornwall and the South West, so you get a price based on your actual windows and doors rather than a generic estimate. The team can talk through paint systems, show examples of completed local projects, and confirm what a written guarantee covers before any work is booked.
If you are weighing up a colour change against full replacement, request a written quote and guarantee alongside a look through the UPVC spraying portfolio so you can compare like for like. Get in touch to arrange a visit and see what an anthracite grey respray would look like on your own property.
Sources
FAQ
How much does uPVC spraying cost?
Whole-house packages typically cost between £800 and £3,000, while single windows range from £50 to £150 and single doors from £150 to £350. Bundling several items into one visit generally lowers the average price per item compared with booking single windows separately.
What is the best anthracite grey paint for uPVC windows?
The best results come from a 2K polyurethane paint system designed for UPVC substrates, applied by a contractor experienced with this specific material. Paint choice matters less than correct surface preparation and application, since even a good paint fails early on poorly prepared UPVC.
What is the paint code for anthracite grey?
Anthracite grey is most commonly identified by the code RAL 7016, which is the standard reference used by UK suppliers and installers. RAL 7021, black grey, is a darker alternative for homeowners wanting more contrast.
How long does uPVC spraying last?
Professionally applied 2K polyurethane coatings on properly prepared UPVC typically last between 10 and 15 years, with many contractors offering a written guarantee of five to ten years against peeling or major colour failure. Longevity depends heavily on preparation quality and ongoing UV exposure.
Is it safe to spray uPVC windows myself at home?
DIY spraying with 2K isocyanate paints is not recommended, since the HSE’s guidance restricts outdoor spraying of these products outside specific low-volume exceptions and requires extraction, breathing protection and clearance testing that most homeowners cannot provide. Hiring a contractor with the correct controls in place is the safer route for both health and finish quality.
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