How To Use A Spirit Level
04/06/2026
When it comes to achieving a professional tile finish, knowing how to use a spirit level properly is essential. Uneven tiles, sloping lines, and poor alignment can quickly ruin the appearance of a wall or floor installation. Whether you’re a professional tiler or tackling a DIY project, a spirit level helps ensure your tiles are perfectly straight, level, and consistent throughout the job.
In this guide, we’ll explain what is a spirit level, how to read one accurately, and how tilers use them to create flawless results.
What Is a Spirit Level?
Before learning how to use a spirit level, it’s important to understand the purpose of the tool.
A spirit level is a tool used to check whether a surface is perfectly horizontal or vertical. It contains sealed vials filled with liquid and an air bubble. When the bubble sits centrally between two lines, the surface is level.
In tiling, spirit levels are commonly used for:
Checking walls before tiling
Levelling floor tiles
Aligning tile rows
Keeping edges straight
Accurate levelling is especially important when working with large-format tiles, where even slight unevenness becomes highly visible.
How To Read a Spirit Level
Understanding how to read a spirit level is the key to accurate tiling.
Inside each vial is an air bubble positioned between two guide lines. The bubble position tells you whether the surface is level.
Bubble centred between the lines = level
Bubble leaning left or right = uneven surface
Bubble outside the lines = significant slope
Most tiling spirit levels include:
A horizontal vial for checking level tile lines
A vertical vial for checking plumb walls
Occasionally a 45° vial for angled work
When checking tiles, always view the bubble at eye level for the most accurate reading.
How To Use A Spirit Level When Tiling
Knowing how to use a spirit level correctly during tiling helps prevent uneven tile grout lines and misaligned tiles.
1. Check the Surface Before Tiling
Before applying tile adhesive, place the spirit level against the wall or floor to identify uneven areas.
This helps you:
Spot dips or high spots
Prepare the substrate correctly
Avoid lippage between tiles
Surface preparation is one of the most important parts of professional tiling.
2. Mark Your Starting Lines
Many tilers use a spirit level to mark straight horizontal and vertical guide lines before laying tiles.
This ensures:
Tile rows remain straight
Patterns stay aligned
Cuts remain consistent around edges and corners
3. Check Each Row of Tiles
As tiles are installed, place the spirit level across the tile faces to check alignment.
This helps prevent:
Uneven tile heights
Sloping rows
Poor overall finish
Longer spirit levels provide better accuracy across wider surfaces.
4. Adjust Tiles Before Adhesive Sets
If the bubble shows the tiles are uneven, make adjustments immediately while the adhesive is still workable.
Gently tap tiles into position using a rubber mallet or tile levelling system until the bubble sits centrally.
This simple process is at the heart of how to use a spirit level effectively during tiling projects.
How Do You Use a Spirit Level Vertically?
When tiling walls, it’s important to check vertical alignment regularly.
To understand how do you use a spirit level vertically:
Hold the level upright against the tiled surface
Check the vertical vial
Ensure the bubble sits centrally
Adjust tile positioning if necessary
This helps maintain straight grout lines and prevents tiles from drifting out of alignment across the wall.
Common Tiling Jobs That Require a Spirit Level
A spirit level is used throughout many tiling applications, including:
Bathroom wall tiling
Kitchen splashbacks
Floor tiling
Mosaic tiling
No matter the project size, accurate levelling is essential for achieving a clean, professional finish.
Read more:
Can a Spirit Level Be Wrong?
The answer is yes. Spirit levels can lose accuracy over time due to:
Accidental drops
Bent frames
Damaged vials
General wear and tear
How To Check a Spirit Level
To test accuracy:
Place the level on a flat surface
Note the bubble position
Rotate the level 180 degrees
Check whether the bubble remains in the same position
If the reading changes, the spirit level may need replacing.
Using an inaccurate level during tiling can lead to uneven rows and noticeable installation errors.
Tips for Accurate Tiling with a Spirit Level
To get the best results when learning how to use a spirit level, follow these tiling tips:
Use a Longer Level for Large Tiles
Longer levels improve accuracy across wide tile spans.
Clean the Level Regularly
Tile adhesive and dust can affect readings.
Check Frequently
Don’t wait until the end of the job to check alignment.
Combine with Tile Levelling Systems
Spirit levels work perfectly alongside tile levelling clips and tile wedges.
Store Your Level Carefully
Avoid impact damage that could affect accuracy.
Which Spirit Level For Tiling?
Here are some examples of spirit level types - each brand has ranges, available in multiple lengths:
Product | Image | Description |
Stabila Type 196-2 Dark Shadow Limited Edition Spirit Level Set |  | The limited-edition spirit level set 196-2 Dark Shadow, available in two convenient lengths of 40 cm and 183 cm, is STABILA's top model, presented in a stylish matt anthracite finish.
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 | The type 80 AS reinforced aluminium rectangular profile, together with STABILA installation technology, ensures accuracy and a long service life.
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 | This level is for all those who need both hands free when aligning and levelling on steel frame structures.
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 | Bihui B-RolleX Aluminium Spirit Levels have a finely milled surface for high accuracy and contain 3 solid acrylic shockproof vials to check horizontal & vertical levels. With a rubber handle and shockproof rubber end caps, the Bihui B-RolleX Aluminium Spirit Levels are not only comfortable to hold but can also withstand harsh conditions. Magnified horizontal vial for an extremely clear view of the bubble. | |
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We also stock spirit level sets, whether you need multiple of one size of spirit level or a mix of spirit level sizes in one bundle, we are proud to stock the latest spirit level innovations, including popular choices such as a set of Stabila levels, 2-pack and 3-packs of the Stabila Type 96 2, or the Stabila Type 70 2 traditional light alloy box section with a smooth, rectangular profile and electrostatic powder coating. Additionally, the shockproof and UV-resistant Kubala Profi Spirit Level Bundle is also favoured by many tradesmen and provides great value.
Here are some great options:
£145.19 INC VAT
£93.59 INC VAT
£91.19 INC VAT
Understanding how to use a spirit level is one of the most important skills in tiling. From preparing surfaces to aligning tile rows, a spirit level helps ensure every installation looks clean, straight, and professional.
Now that you know how to use a spirit level, you’ll be able to tackle tiling projects with greater confidence and accuracy.
If you require any additional support or advice with your tiling project, please get in touch with our friendly team. You can email us at [email protected] or give us a call at 01604 859800.