If you're considering blown double glazing repairs, whether for maintaining your home's energy efficiency, preparing for a property sale, or addressing specific issues, it's essential to understand the factors that influence the cost. Below, we explore the key considerations affecting blown double glazing repair costs and provide insights into what you should expect.
In this guide, we'll explore the following topics:
- Cost of blown double glazing repairs
- Additional costs to consider
- Blown double glazed windows: Everything you need to know
- Repair techniques for blown double glazing
- DIY vs. professional blown double glazing repairs
- Regulations and Warranties
- Frequently asked questions
Cost of blown double glazing repairs
The cost of repairing blown double glazing typically ranges from £70 to £180 per window, influenced by factors like window size, glazing type, and repair complexity. On average, homeowners can expect to pay around £120 per window, which includes materials and labour.
| Cost Factor | Price Range |
|---|---|
| Replacement glass pane (per pane) | £45 - £90 |
| Seals and spacers (per set) | £10 - £20 |
| Silicone sealant (per tube) | £5 - £10 |
| Desiccant (per packet) | £1 - £3 |
| Glazing tape (per roll) | £3 - £5 |
| Inspection and sealing kit | £10 - £20 |
| Hourly rate for tradesperson | £30 - £50 |
| Labour cost per window | £50 - £100 |
| Inspection of window frames | £20 - £40 |
| Tradesperson travel costs | £10 - £20 |
| Maintenance costs (annually) | £10 - £15 |
| Disposal of old glass/materials | £5 - £15 |
| Double glazing cleaning service | £20 - £40 |
| Emergency repair fees | £50 - £100 |
Factors influencing repair costs
Understanding the cost of blown double glazing repairs is crucial for homeowners looking to maintain the efficiency and appearance of their windows. Various factors influence these costs, from the size and type of glazing to the complexity of the repair and the location of the property. This guide will help you understand these factors and provide an estimate of how much you might expect to pay for common repairs such as misted window repair and brick slips.
Factors Affecting the Cost of Blown Double Glazing Repairs
- Window size: Larger windows require more materials and time, increasing costs. Small windows might cost closer to £70, whereas large bay windows could be upwards of £180.
- Type of glazing: Specialised glazing, such as Low-E or toughened glass, is generally more expensive.
- Location: Repair costs can vary based on geographical location, with urban areas typically having higher labour rates.
- Complexity of repair: Simple resealing jobs are cheaper, while full replacement of the glazing unit or frame is more costly.
- Additional services: Frame inspections, cleaning, or emergency repairs add to the total cost.
By considering these factors, you can better estimate the potential costs involved in repairing blown double glazing and make informed decisions about necessary repairs.
Cost comparison: Repair vs. replacement
Knowing when to repair or replace your double glazing can save money. Here’s a cost comparison:
| Task | Repair Cost | Replacement Cost |
|---|---|---|
| Repairing blown double glazing (per window) | £120 | N/A |
| Replacing glass pane (per pane) | £65 | £150 - £300+ |
| Seal and spacer replacement (per set) | £15 | Included in replacement |
| Labour (per hour) | £40 | £60 - £100+ |
| Total estimated cost (per window) | £120 - £180 | £250 - £400+ |
Repairing blown double glazing is usually more cost-effective than full replacement, especially if the frame is in good condition. However, if the frame is damaged or the window frequently fails, replacement might be a better long-term investment.
Blown double glazed windows: When to repair and when to replace a window?
Determining whether to repair or replace a blown double-glazed window depends on the specific issue and its severity. Repairing can be cost-effective for minor problems, while replacement may be necessary for more severe damage or long-term efficiency. Below is a guide to help you decide, along with average costs.
| Common Issue/Task | Description | Repair or Replace | Average Cost (Price Range) |
|---|---|---|---|
| Minor seal damage | Small gaps or deterioration in the seals | Repair | £70 - £100 |
| Misted or fogged panes | Condensation between panes | Replace | £120 - £180 per pane |
| Cracked or broken glass | Visible cracks or shattered glass | Replace | £150 - £300 per unit |
| Condensation inside panes | Moisture trapped inside glazing | Replace | £120 - £180 per pane |
| Draughty windows | Leaks around window edges causing drafts | Repair | £50 - £100 |
| Full unit damage | Extensive damage to both glass and frame | Replace | £250 - £400+ per unit |
| Inspection of window frames | Checking for minor issues in window frames | Repair | £20 - £40 |
| General maintenance and cleaning | Regular upkeep to maintain window condition | Repair | £10 - £15 annually |
For minor seal damage, draughty windows, and routine maintenance, repairs are generally sufficient and more affordable. However, for issues like misted panes, cracked glass, and extensive unit damage, replacing the window ensures long-term efficiency and better performance. Consulting a professional can provide a more precise assessment and recommendation tailored to your specific situation.
Note: Always seek multiple quotes from professionals to ensure competitive pricing and quality service. For comprehensive support, consider MyBuilder to connect with experienced tradespeople in your area.
Additional costs to consider
When budgeting for blown double glazing repairs, consider additional costs for misted window repair or addressing condensation issues. Below are specifics on these additional costs.
Misted window repair cost
Repairing misted windows, where condensation is trapped between panes, costs £70 to £110 per window. This includes moisture removal, resealing, and possibly replacing faulty units.
Double glazing condensation repair cost
Repairing condensation inside double glazing units costs £70 to £130 per window. This includes fixing seals and using desiccants to address moisture issues permanently.
Blown double glazed windows: Everything you need to know
What is blown double glazing?
Blown double glazing refers to windows that have lost their insulating properties due to seal failure between the panes. This allows moisture to enter, causing condensation, fogging, and reduced heat retention. Blown windows, also known as misted windows, are inefficient barriers against temperature fluctuations, leading to increased energy consumption and higher utility bills.
Common causes of blown double glazing
Blown double glazing, also known as failed double glazing, occurs when the seals between the panes of glass break down, leading to condensation or misting between the layers. This not only affects the aesthetic appeal of your windows but also reduces their thermal efficiency. Understanding the factors that influence the cost of repairs is essential for homeowners seeking to maintain their windows.
- Natural wear and tear: Seals degrade over time due to weather conditions and UV rays.
- Poor installation: Improper installation increases the likelihood of sealing issues.
- Faulty manufacturing: Defects in materials or assembly can cause premature seal failure.
- Temperature fluctuations: Rapid temperature changes cause seals to expand and contract, leading to failure.
Identifying blown double glazing: Signs and actions
Identifying blown double glazing early can save you from costly repairs. Below is a table outlining key signs, the affected component, and recommended actions.
| Sign | Component | Description | Action |
|---|---|---|---|
| Condensation between panes | Glass Panes | Moisture or fogging inside the window unit | Replace glass panes |
| Visible damage | Glass/Seals | Cracks or chips in the glass or seals | Replace glass or reseal |
| Draughts | Window Edges | Leaks around window edges causing noticeable draughts | Apply weatherstripping or sealant |
| Reduced sound insulation | Glass/Seals | Increased outside noise | Inspect and potentially replace glass |
| Cold spots near windows | Window Frame/Seals | Areas around the window feeling colder than expected | Inspect seals and frame; repair as needed |
By addressing these signs promptly, you can maintain your windows' efficiency and prevent further damage.
Consequences of ignoring blown double glazing
Ignoring blown double glazing can lead to:
- Increased energy bills: Inefficient windows lead to higher heating and cooling costs.
- Decreased property value: Poorly maintained windows can reduce your home's market value.
- Compromised comfort: Inconsistent indoor temperatures and increased noise.
- Possible structural damage: Prolonged moisture exposure can cause mould growth and damage window frames.
Addressing blown double glazing promptly helps maintain your home's energy efficiency and aesthetic value. If you notice any signs, seek a professional opinion from a glazier.
Repair techniques for blown double glazing
When dealing with blown double glazing, selecting the appropriate repair method is crucial for ensuring long-term efficiency and aesthetic appeal. Below is a comparison of three common repair methods, each with its advantages, drawbacks, and associated costs.
| Repair Method | Description | Pros | Cons | Cost Range per Window |
|---|---|---|---|---|
| Resealing | Removing old sealant and applying new sealant around the glass edges. | Cost-effective, quick fix, minimal disruption | May not address underlying moisture issues | £70 - £100 |
| Replacing the glass panes | Replacing damaged or misted glass panes to improve insulation and appearance. | Effective long-term solution, improved insulation, aesthetics | Higher cost, may require professional help | £120 - £180 |
| Full unit replacement | Replacing the entire unit, including the frame, for extensive damage or old units. | Comprehensive fix, long-term energy efficiency, improved aesthetics | Most expensive, time-consuming | £250 - £400+ |
Each method offers different benefits and costs, so it's essential to choose based on the extent of the damage and long-term needs. Consulting a professional can help determine the best approach for your specific situation.
Choosing the right repair method
Assess the extent of the damage
- Minor seal damage: Resealing may suffice.
- Misted or damaged panes: Replacing glass panes is likely necessary.
- Extensive damage: Full unit replacement may be best for old or significantly damaged units.
Evaluate the costs involved
- Budget constraints: Resealing is more affordable in the short term.
- Long-term savings: Replacing panes or entire units offers better energy efficiency and reduces the need for future repairs.
Consider the time factor
- Quick fix needs: Resealing is the fastest option.
- Comprehensive results: Replacing panes or units takes more time but provides better results.
Energy efficiency and aesthetics
- Improved insulation: New panes or units can reduce energy bills.
- Enhanced appearance: Full unit replacement can upgrade the window's appearance, potentially increasing property value.
Choosing the right repair method depends on the extent of the damage, costs, and long-term needs. A professional can help you find a tailored solution that meets your specific requirements.
DIY vs. professional blown double glazing repairs
Can you DIY repair blown double glazing?
DIY repairs can seem like a cost-saving measure, but they involve identifying the cause, acquiring materials, and using proper installation techniques. Risks include voiding warranties, inaccurate repairs, and safety concerns. Weigh these risks against potential savings before proceeding. Below is a table listing common issues/tasks, their DIY feasibility, and recommended fixes.
| Common Issue/Task | DIY Possible | Recommendation of Fix |
|---|---|---|
| Minor seal damage | Yes | Reseal with new silicone sealant |
| Misted or fogged panes | No | Professional replacement of glass panes |
| Cracked or broken glass | No | Professional replacement of the glass unit |
| Condensation inside panes | No | Professional desiccant replacement or resealing |
| Draughty windows | Yes | Apply weatherstripping or sealant |
| Full unit replacement | No | Professional installation of new unit |
| Inspection of window frames | Yes | Inspect and repair minor frame issues |
| General maintenance and cleaning | Yes | Regular cleaning and inspection |
While some minor repairs and maintenance can be handled as DIY projects, major issues such as misted panes, cracked glass, or full unit replacements should be handled by professionals to ensure quality, safety, and warranty compliance.
Benefits of hiring a professional
Hiring professionals ensures quality, speed, and efficiency. Benefits include:
- Quality and longevity: Professional repairs extend window lifespan.
- Speed and efficiency: Professionals complete repairs faster.
- Guarantees and warranties: Professional repairs often come with warranties.
- Compliance with regulations: Certified tradespeople ensure compliance with UK building regulations.
- Comprehensive evaluation: Professionals identify and address all potential issues.
While DIY repairs may save money initially, professional services ensure quality, safety, and long-term efficacy. For assistance, consider MyBuilder to connect with qualified tradespeople.
Regulations and Warranties
UK Government Regulations on double glazing
UK regulations ensure safety, energy efficiency, and quality of installation:
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Building Regulations (Approved Document L): Addresses energy conservation with specific criteria for thermal insulation. Windows must comply with U-values (a measure of thermal efficiency), typically requiring a U-value of 1.6 W/m²K or lower.
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FENSA (Fenestration Self-Assessment Scheme): Allows window and door installers to self-certify compliance with building regulations. FENSA-registered installers provide certificates of compliance, crucial for home warranties and property sales.
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British Standards (BS 8213-1:2004): This standard covers the code of practice for window and door installation, emphasising proper fitting to ensure longevity and efficiency.
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Secured by Design (SBD): While not mandatory, this UK Police initiative improves building security. SBD-certified windows meet specific intruder resistance criteria, adding an extra layer of security.
Adhering to these regulations ensures that your double glazing meets legal standards and is optimally effective in energy conservation and safety.
Warranty and insurance considerations
Understanding warranty and insurance aspects is essential when investing in blown double glazing repairs:
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Manufacturer’s Warranty: Typically covers glass, seals, and performance for 5 to 10 years. Always check the warranty's scope, as some only cover manufacturing defects, not installation issues.
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Installation Warranty: Provided by professional tradespeople, usually ranging from 1 to 5 years, covering workmanship-related issues. A FENSA certificate validates compliance with building regulations and can act as an installation warranty.
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Home Insurance Implications: Double glazing repairs might not be covered under standard home insurance policies. Check with your insurer to understand coverage and required documentation for claims.
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Extended Warranties and Service Contracts: Available at an additional cost, covering accidental damages or specific repairs beyond the initial warranty period.
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Considerations for Selling a Property: Ensure all repairs are documented and compliant with UK regulations. Proof of compliance can facilitate a smoother property sale process.
Find a professional with MyBuilder
Finding a skilled professional for blown double glazing repairs is crucial for quality and durability. MyBuilder simplifies this process by allowing you to post a job and receive quotes from qualified tradespeople. Compare quotes, check reviews, and select a tradesperson who fits your budget and expectations. Posting a job is free, and you can ensure competitive pricing and high-quality service by using MyBuilder.
Frequently asked questions
Addressing common queries about blown double glazing repairs can help demystify the process. Here are some frequently asked questions:
What causes double glazing to blow?
Blown double glazing occurs when the seal around the glass panes fails, allowing moisture to infiltrate. This can be due to age, poor installation, extreme weather conditions, or physical damage.
How long does it take to repair blown double glazing?
Repair time varies based on repair complexity. Simple seal replacements may take a few hours, while full unit replacements might require a day or two. Consult your contractor for a precise timeline.
How durable are the repairs?
Professional repairs can significantly extend the lifespan of your windows. High-quality materials and skilled workmanship ensure durability, although exact longevity depends on the repair quality and maintenance.
What are the long-term benefits of repairing blown double glazing?
Repairing blown double glazing offers several benefits:
- Enhanced energy efficiency: Properly sealed windows prevent heat loss, reducing energy bills.
- Improved aesthetics: Clear, mist-free windows enhance home appearance.
- Increased property value: Well-maintained windows can boost property market value.
- Comfort and insulation: Repairs improve insulation, reducing draughts and noise pollution.
Is it more cost-effective to repair or replace blown double glazing?
The decision depends on specific circumstances:
- Repair: Generally cheaper, suitable for minor issues. Repairing a window gasket or realigning frames costs around £70 - £180 per window.
- Replacement: More expensive but necessary for severely damaged windows or older installations. Replacement offers better long-term value through modern, energy-efficient units. Refer to the detailed cost comparison table in the "Cost comparison: Repair vs. replacement" section for further insights.