Hollow sounding tiles - is this normal?

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Hi everyone,

I recently bought a newly built house and paid extra for some upgrades, including £7,000 for tiling the kitchen and hallway. The tiles look great, but I've noticed several have hollow spots when tapped, even after the developer has already replaced or re-adhesived many of them. Typically, about 70% of a tile sounds solid, but some areas, like a corner or a midpoint, sound hollow. Is this normal, or should I address this issue with the developer again?

Thanks,

T_IT
 
If its hollow because there is insufficient adhesive its at higher risk of failure.

Either get it done properly or get some kind of written guarantee (not that it would be worth much as the developer will fold and resume trading as a new enitity)

£7,000 is a LOT of money for tiling 2 rooms so I would be inclined to get an independent assessment of the work.
 
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Hi everyone,

I recently bought a newly built house and paid extra for some upgrades, including £7,000 for tiling the kitchen and hallway. The tiles look great, but I've noticed several have hollow spots when tapped, even after the developer has already replaced or re-adhesived many of them. Typically, about 70% of a tile sounds solid, but some areas, like a corner or a midpoint, sound hollow. Is this normal, or should I address this issue with the developer again?

Thanks,

T_IT
It normally means insufficient coverage of tile adhesive and / or dips in surface.

Some cowboy tilers will dot and dab tiles rather than notched trowel with back buttering for full coverage.

Whatever the reason, it's improper installation.
 
It normally means insufficient coverage of tile adhesive and / or dips in surface.

Some cowboy tilers will dot and dab tiles rather than notched trowel with back buttering for full coverage.

Whatever the reason, it's improper installation.

Thanks for your responses. Based on what you've shared, it seems the hollow spots indicate insufficient adhesive, putting the tiles at higher risk of failure. This improper installation is concerning, especially given the cost.

The developer is large and operates multiple sites across the UK and Scotland. We do have a 2-year period to address such issues, but I worry that with regular foot traffic, the inadequate adhesive might cause the tiles to move, potentially requiring a full replacement in the future if matching tiles become unavailable.

Given these points, I'll be reaching out to the developer to ensure the tiling is redone properly.

Thanks.
 
The tiles as they are probably wouldn't move, but will be more likely to break from dropping something on them, and also cracks in grout lines if they are dot and dabbed.
 
As the others say, its dot and dab but probably done poorly too. Even with dot and dab it has to be pretty low on adhesive to be giving the sort of gaps that give you the hollow sound. unlikely to just fail but certainly a weak point that will fail if its somewhere that takes pressure.
 
Yep improper installation, keep hounding them or theyll just forget about it as well.

Some of our doors have been a right pain, waiting for further adjustments to front and back doors!
 
Update:

The builder had the manager of the tiling company come over, who initially tried to dismiss our concerns by attributing the issues to standard tile sounds and acceptable lippage tolerances. We challenged him immediately, pointing out that his explanation was nonsense and that we had already had the work inspected by a third party. He then changed his stance, blaming the problems on the substrate, claiming the concrete flooring was uneven and of poor quality. He said this forced them to lay the tiles on an unscreeded floor full of lumps, bumps, and cracks, which he claimed caused the significant lippage, hollowness, and inconsistent grout gaps. I told him that was their responsibility, and the tiles should never have been laid on such a poor substrate, especially without proper matting to allow for settlement.

He said the builder pressured them into proceeding with the job. The next day, two tilers came to inject resin under some tiles, which didn’t resolve the issue. They also lifted and relaid several tiles due to lippage, but while they fixed one side of the tile, they created lippage on another. They did not use spacers or leveling clips and grouted the tiles before they were set. When they returned the following day to grout all the tiles, the grout mixed with adhesive because it hadn't set properly, resulting in a poor finish. A week later, the hollowness and lippage remain. We had a third party inspect and conduct a report on the work, identifying multiple issues, which I will post separately below.

TLDR version:

Inspection of Floor Tiling Installation

An independent inspection of the floor tiling at "XXXX ROAD" Lane found multiple issues with the workmanship, including significant lippage, uneven levels, hollow-sounding tiles, poor surface preparation, grout bleed, cracked and incorrectly cut tiles, marks on tiles, inconsistent adhesive and grout mix, and failed rectification attempts. These issues violate the Consumer Rights Act 2015, Consumer Code for Home Builders, and relevant British standards.

Recommended Corrective Actions:


  1. Remove existing tiles and prepare the substrate properly, including leveling and fixing structural defects.
  2. Reinstall tiles with correct adhesive coverage and consistent grout spacing, ensuring compliance with industry standards.
  3. Remove and reinstall skirting boards, kitchen units, and sanitary ware as needed.
  4. Install dust protection and conduct a thorough deep clean.
  5. Conduct a final inspection to ensure all corrective measures meet required standards and provide documentation to the customer.
The report concludes that the current installation does not meet acceptable quality standards and outlines necessary steps to achieve a professional and durable finish.

We have reached out to the builder and are still waiting for a response. We've documented everything and are now communicating via email since the site manager has made promises over the phone that he hasn’t kept. We’ve also copied in the CEOs of the company. We’re now questioning our options if we need to get the work redone by someone else, considering we paid £7,056 for the tiled flooring as an optional extra, along with £14,000 for other upgrades and extras, with 50% paid upfront via debit card (rather than credit card, unfortunately) in February and the remaining 50% paid via the solicitor at completion.

I understand chargebacks can be set up within 120 days of the purchase, but since the payment through the solicitor was only 8 weeks ago, I’m unsure of our standing.

Any thoughts on next steps? So far, we’ve emailed three times, including the inspection report, and have copied in the CEO and solicitor. Our next step is to leave reviews on Trustpilot and post on the independent Social Media Feedback page that the builder monitors. We've emphasized that we’re not seeking compensation or financial gain—just the 5-star quality product that we were promised and paid for.
 
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Report:

1. Introduction​

This report has been prepared at the request of the clients to assess the quality of the floor tiling installation performed at their property. The objective of this report is to provide an independent evaluation of the workmanship, identify deficiencies, and recommend the necessary corrective actions to achieve an acceptable standard.

2. Summary of Findings​

Based on a thorough visual inspection, photographs provided, and discussions with the customer, the following issues were identified with the current floor tiling installation:

  • Significant Lippage: The tiling exhibits visible lippage with certain tiles not aligned evenly, creating an uneven surface that exceeds acceptable British standards tolerances for lippage, which allows up to 1mm deviation for tiles with grout joints between 2-6mm, as specified in BS 5385-1: 2018.
  • Variability in Levels Across the Floor: There are inconsistencies in floor levels, indicating improper surface preparation.
  • Noticeable Hollowness: Multiple tiles sound hollow when tapped, indicating insufficient adhesive contact or voids beneath the tiles, compromising the integrity and durability of the installation.
  • Lack of Preparation: Evidence suggests inadequate surface preparation, such as the absence of leveling screed or substrate matting. Proper preparation is critical to ensure a flat and stable foundation.
  • Grout Bleed: Grout has seeped into unintended areas, causing discoloration and an unprofessional appearance.
  • Crack in Tile: Cracked tiles were observed, likely due to inadequate substrate preparation or improper handling.
  • Tiles Fitted Incorrectly or Cut Short: Several tiles were incorrectly cut or fitted, resulting in gaps and an unsatisfactory finish.
  • Marks on Tiles Due to Lack of Protection: Marks and scuffs were found on the tiles, indicating a lack of protective measures during installation.
  • Inconsistent Adhesive and Grout Mix: The adhesive and grout mixes appear uneven, affecting bonding and grout consistency.
  • Uneven Grout and Gaps Between Tiles: Grout lines are inconsistent, with noticeable gaps between tiles, impacting both appearance and durability.
  • Failed Rectification Attempts: Attempts to rectify the uneven tiles by replacing individual tiles have worsened the situation, leading to further inconsistencies.

3. Breach of Consumer Rights and Building Standards​

The current tiling installation does not conform to the following standards and breaches several consumer rights:

  • Consumer Rights Act 2015: The installation fails to meet reasonable standards of workmanship and quality. The customer is entitled to a remedy or a refund to allow for independent rectification.
  • Consumer Code for Home Builders:
    • Section 3.1: Failure to adopt high standards of quality control.
    • Section 3.2: Inadequate rectification of snagging issues.
    • Section 5.1: Failure to provide appropriate levels of customer service.
    • Section 3.3: Non-compliance with building standards and regulations.
  • Relevant Standards and Guidelines Not Met:
    • BS 5385-1: 2018: Code of practice for wall and floor tiling, including the preparation of the substrate.
    • BS EN 14411: Ceramic tiles definitions, classification, characteristics, and marking, requiring tiles to be installed without visible defects.
    • BS 8204-1: Screeds, bases, and in-situ floorings – Methods of specifying and testing for levels and flatness, essential for substrate preparation.

4. Recommended Corrective Actions​

To rectify the issues identified and achieve a satisfactory standard of workmanship, the following steps are recommended:

  1. Removal of Existing Tiles: All currently installed tiles should be carefully removed by a competent tiler to prevent damage to the underlying structure.
  2. Substrate Preparation:
    • The surface should be leveled using appropriate screed to meet BS 8204-1 standards for flatness.
    • Any cracks or structural defects in the substrate must be repaired prior to tiling.
    • Install substrate matting (decoupling membrane) to accommodate any movement and prevent settlement cracks, which are common in new builds.
  3. Reinstallation of Tiles:
    • Ensure that tiles are laid level with a maximum lippage within the 1mm tolerance as per BS 5385-1: 2018.
    • Use a suitable adhesive with full coverage beneath each tile to prevent hollowness and ensure a solid bond.
    • Maintain consistent grout spacing throughout, in accordance with tile manufacturer's guidelines.
  4. Additional Corrective Actions:
    • Removal of all skirting boards to allow for proper tile installation.
    • Modification or raising of kitchen units to provide adequate access for tile removal and reinstallation.
    • Removal of downstairs toilet and wash hand basin by a competent tiler.
    • Installation of dust protection barriers around the lounge, study, and hall/stairs to protect carpets, furniture, and personal items.
    • Proper floor preparation and primer application by a competent tiler to ensure proper adhesion.
    • Reinstallation of kitchen units and skirting boards.
    • Reinstallation of sanitary ware by a competent tiler.
    • Conduct a deep clean of the property to remove all dust and debris.
    • Repair any paint damage caused during the rectification process.
  5. Quality Assurance and Documentation:
    • A final inspection should be conducted to verify that all corrective measures meet the required standards.
    • Documentation of the corrected work should be provided to the customer for their records.

5. Conclusion​

The current state of the tiled flooring does not meet acceptable quality standards due to improper installation practices, including inadequate surface preparation and poor workmanship. The recommended corrective actions outlined in this report should be undertaken to achieve a professional and durable finish that meets industry standards.

We trust this report provides a clear assessment of the current situation and the necessary steps to resolve the identified issues. For further clarification or assistance, please contact RG Tiling.

Attachments​

  • Photographs of the Current Tiling Installation: Mainly focusing on the hallway and dining/kitchen area. Not all areas photographed due to lighting and customers' furniture present. Further photographic evidence is available.
  • Relevant Documents: Including the Consumer Code for Home Builders from the Home Builders Federation (HBF) and standards from the British Standards Institution (BSI), accessible on their official websites and can be provided as additional references upon request.
 
New build and the concrete was poor... Sounds like the whole sub floor needs ripping up then... Bet he'll change his mind when that gets pointed out
 
New build and the concrete was poor... Sounds like the whole sub floor needs ripping up then... Bet he'll change his mind when that gets pointed out
So, when we did our pre-completion inspection, it was identified that the study and lounge floors were poor. The tiles were already down at this point. We raised the issues with the tiles then and was told it would be sorted before completion. It wasn't...

The study floor and lounge were re-screeded based on this... so I assume the hallway and kitchen/dining area were the same, but we never inspected due to the tiles being down.
 
Update:

Builder has responded to my complaint:

Thank you for contacting us. This email is to confirm that we have received your complaint regarding the tiled flooring to your home. We are now reviewing the issue and will be in touch again shortly to confirm the next steps.

Please be assured that we take all complaints seriously and aim to respond to all formal complaints within 20 working days.

Please find enclosed a copy of our full Complaints Policy.


I'm not holding my breath as they took over 5 working days to respond, despite their policy saying they will acknowledge emails and complaints within 5 working days.
 
You might have to take them to court, but with that independent report you should win.
Yeh - I feel that I are using the 25 days to come up with some **** and bull story about allowing for 1mm lippage tolerance and other reasons why the job is "satisfactory".

If it was to go to court, would it be small claims or solicitor and big boy court?
 
Yeh - I feel that I are using the 25 days to come up with some **** and bull story about allowing for 1mm lippage tolerance and other reasons why the job is "satisfactory".

If it was to go to court, would it be small claims or solicitor and big boy court?

You might want to edit out an important detail on your update as it's got your address in it :eek:
 
You might want to edit out an important detail on your update as it's got your address in it :eek:

In addition there are quite a few people on these forums posting pictures with embedded GPS details showing their home and daily travel locations.

I use a custom browser that shows an icon over pictures if they have GPS data and hovering brings up the map. I am surprised how often its enabled but I think the rise of file versus picture only sharing sites has made this more common (people still shouldn't give GPS data to any sites even if they do remove if for viewing as they'll monetise it!)
 
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