How is your propeller repaired


Steel Developments was established in 1958 and since then we have been offering our propeller repair service to both trade and retail customers.

Why Repair Propellers?
A propeller is very important in achieving the best performance. It is the only connection between the engine and the water and affects speed, acceleration, handling, ride comfort and fuel economy. Any damage to a propeller, however minimal it may seem, can severely affect the performance and increase fuelconsumption. Propellers should be professionally repaired by a specialist to ensure correct profile, pitch and balance. Having a prop correctly maintained is very economical and it is not worth taking the risk of further damaged particularly to the drive by using a damaged propeller. It is ineffective to try to do a DIYrepair and this could cost you more in the long run.

What can be repaired?
Repairs can be carried out to Aluminium, Bronze & Stainless Steel propellers and impellers of any size up to 48” diameter. A repair can be carried out as long as the material is in sound condition and there is approximately 2/3rd’s of each blade left. If the propeller bush or exhaust ring is damaged this can also be replaced for most models.

Operations: The following are the operations of a propeller repair:

Each propeller or impeller is serial numbered on arrival to ensure that the correct propeller is returned to the rightful owner.

Bush Test and Exhaust Ring inspection
If the propeller has a rubber bush this is dry torque tested and the exhaust ring is inspected for damage. If either of these need replacing a note is made and the customer contacted, the appropriate action will then be taken according to the customers requirements.

Straighten Blades
The blades are straightened by using the appropriate pitching block depending on the propeller make size and pitch.

Rough Dress
The blades are prepared prior to welding

Argon Weld new sections
The propeller is welded using our unique underwater welding technique, which enables sections to be repaired without damage to the rubber bush.

The propeller is shaped to ensure profile continuity between blades. Each propeller is then hand checked by our engineers

Each propeller is individually checked by an experienced engineer to ensure the pitch is correct and any adjustments are made



The propeller is then balanced to ensure that it runs vibration free

Aluminium propellers are painted with a synthetic paint finish as one coat directly to the propeller. Bronze and Stainless Steel props are satin finished.

Quality Control and Despatch
Each propeller is located from the finishing departments by serial number, to ensure the correct prop is returned to the rightful owner. Propellers are finally checked and then released for collection or delivery.

All repairs are guaranteed and are carried out by qualified and factory trained engineers. Our staff have extensive experience and knowledge in the field of propellers and their application and we are known for our reliable, efficient and friendly service to both trade and private customers.



INTERPRETATION... In these conditions, unless the context other wise requires A. "Sellers" means Steel Developments of 240 Merton Road, London, SW18 5JQB. "Buyer" means the person or company named in the sales invoice form, quotation or delivery advice, and shall include the plural, and in the case of an individual, his executers, administrators and assigns, and in the case of a company its successors and assigns 

PRICES …….. Orders are accepted on the condition that the goods will be invoiced at the price ruling at the date the goods are despatched. Prices are subject to alteration without notice. All prices quoted are UK £ sterling. 

REPAIRS …….. Although we take every care during the repair process due to the poor condition and unknown history of operation of damaged propellers, no responsibility can be accepted for propellers which may break during the repair process. No warranty is given for propeller rubber cushion hubs as they are a safety device designed specifically to slip upon excessive torque loading. Repairs are carried out to impact blade damage only. The standard repair process does not cover hub damage of any kind. Corrosion damage is not repairable, in some cases there may be pit marks present on propellers after repair that are suffering from electrolysis corrosion. Cavitation burns are not repairable. Repairs are not shot or sand blasted and a single application of synthetic paint finish is applied directly to repaired propellers. Paint finish is not covered under any warranty. Bronze and stainless steel propellers are repaired to a satin finish. For propellers which have had new bushes fitted, these must be run in for at least half an hour at less than quarter throttle. We reserve the right to dispose of unclaimed items after three months.

DISPATCH …….. All goods are despatched at owners risk only. Goods are despatched after full payment except for customers who we have given an authorized account in writing. Delivery times are given as a guide line and we accept no liability for consequential loss caused by late delivery. Goods despatched will not be covered by our insurance unless specifically arranged prior to shipment. Where goods are not covered by our insurance, no claim for damage or loss in transit can be entertained under any circumstances. 

DELAYS …….. If delivery of the goods or any part thereof cannot be effected by reason of any strike, lock-out, industrial dispute, unavailability of raw materials, breakdown of plant, transport or equipment, for any reason whatsoever which is beyond the control of Steel Developments, the time for delivery shall be extended until the causes preventing delivery have ceased. Steel Developments shall not be liable to make good any loss arising out of such delayed delivery or failure to deliver 

CANCELLED ORDERS …….. Orders cannot be cancelled without the approval of Steel Developments and, if approval is given, upon terms which compensate Steel Developments for all work completed and materials used to the date of the cancellation. 

RETURNS …….. Goods are to order and are not returnable unless authorized by Steel Developments prior to their return, except goods which are found to be faulty. Steel Developments reserve the right to levy a 15% handling charge for the return of authorized goods with a minimum fee of £25.00 + VAT per item. All goods returned must be unused, undamaged and in a clean condition and with their original packaging and parts which must also be returned undamaged and unmarked. Goods to special order are non returnable. Steel Developments reserve the right to refuse the return of any goods. No credit will be issued for carriage and packing costs. A credit note will normally be issued for authorized returns unless prior arrangement has been made. Steel Developments is not liable for costs incurred in the return of goods, if we arrange collection of returns then we reserve the right to impose a collection fee or returns are to customers arrangements and cost.  For all returns authorization must be made within 7 days of receipt and then any authorized return must be delivered to our premises within 14 days from the date of invoice / receipt. A copy or the original invoice MUST accompany the goods. 

TITLE …….. Property in the products shall not pass to the buyer until the seller receives full payment thereof and until that occurs, the seller retains the full legal and equitable title to the products. Should the buyer dispose of the products prior to full payment of the invoice price thereof, any monies received by the buyer in payment of the same shall be held in trust for the seller by the buyer. 

PAYMENT …….. Goods will not be despatched until full payment of our invoice has been received unless the buyer has an authorized account. Authorized accounts are due in full, free of exchange, not later than 20 days from the end of the month of the date of our invoice for the goods, and to the extent that any payment is not so made. Steel Developments reserves the right to suspend all further deliveries until payment satisfactory to Steel Developments has been made and to retain goods destined to the buyer until such payment has been received. The above conditions of title will apply to all goods and services supplied. 

WEAR & TEAR …….. Steel Developments shall be under no liability in respect of any defect arising from fair wear and tear, willful damage, negligence or abnormal working conditions 

USE OF PRODUCTS …….. Steel Developments shall be under no liability in respect of any defect arising from failure to follow Steel Developments instructions (whether oral or in writing) or misuse or alteration or repair of the goods without Steel Developments approval and it is recommended that an appropriately qualified and competent person is engaged by the customer to install the goods. Steel Developments shall be under no liability or give any warranty if the total price for the goods has not been paid by the due date for payment. Steel Developments warranty does not extend to parts, materials or equipment not manufactured or supplied by Steel Developments in respect of which the customer shall only be entitled to the benefit of any such warranty or guarantee as is given by the manufacturer to Steel Developments. Steel Developments can not accept any claims for consequential loss howsoever caused. So long as the goods supplied are of sound commercial quality, there is no guarantee of their suitability for any specific purpose even if the purpose for which they are intended to be used is know to the seller. Due to the many variables inherent in propeller size suggestions, we can not guarantee the use of propeller sizes suggested by the officers, individual employees or printed literature supplied by Steel Developments.  The customer is resonsible to make sure that the propeller fits correctly and that the correct spacers and washers are used.  Faliure to fit a propeller correctly can result in damage to the propeller and or engine, Steel Developments are not reponsible for incorrect fitment of propellers and any subsiquent damage or costs incurred.  If there is any doubt when fitting a propeller then a competent or qualified person should be engaged to fit said propeller.  Propellers are not supplied with washers, spacers, nuts, pins etc, these are seperate items normally supplied with the engine but can be purchased seperatly.

CONDITIONS AND WARRANTIES …….. Our liability for goods of our own manufacture is limited to making good any defects by repairing the same at our premises or at our option by replacement, within a period of not exceeding six calendar months after the goods have been despatch, provided that. (A) defects have arisen solely from faulty materials or workmanship. (B) the goods have not received maltreatment, inattention or interference by the buyer or third parties. (C) the goods are returned to our premises promptly at no cost to us. No liability is accepted for any consequential loss the buyer may suffer as a result of use of faulty goods, whether such loss is caused by our negligence or default or otherwise. Rubber cushion hub inserts in propellers are specifically excluded from warranty against slippage as they are a safety device designed specifically to slip upon excessive torque loading. If goods not of our manufacture are supplied, the guarantee of the manufacturer thereof shall be accepted by the buyer and is the only guarantee given in respect of the goods. Paint finish is not covered under any warranty. No conditions and warranties are given unless expressly included in these conditions or given in writing and all conditions and warranties implied by Law and expressly excluded to the extent permitted by Law. Propellers & products used for racing, or in our judgment, performance equivalents to racing will not be warranted. Propellers modified, thinned, sharpened, up pitched or down pitched, reworked, blue printed / lab finished are not covered under warranty. Any warranty only applies to the original owner with the original sales receipt.

PROPELLER SIZING …….. Please note that propeller sizing is not an exact science and all recommendations are offered on this basis

LIABILITY …….. (1.1) We shall not be liable for any loss or damage caused by events or circumstances beyond our reasonable control (such as severe weather conditions, the actions of third parties not employed by us or any defect in a customer’s or third party’s property) this extends to loss or damage to vessels, gear, equipment or other property left with us for work or storage and harm to persons entering our premises or using any of our facilities or equipment. (1.2) We shall take reasonable and proportionate steps having regard to the nature and scale of our business to maintain security at our premises and to maintain our facilities and equipment in reasonably good working order, but in the absence of any negligence or other breach or duty by us vessels and other property are left with us at the customer’s own risk and customers should ensure that their own personal and property insurance adequately coves such risks. (1.3) We shall not be under any duty to salvage or preserve a customer’s vessel or other property from the consequences of any defect in the vessel or property concerned unless we have been expressly engaged to do so by the customer on commercial terms. Similarly we shall not be under any duty to salvage or preserve a customer’s vessel or other property from the consequences of an accident which has not been caused by our negligence or some other breach of duty on our part. However we reserve the right to do so in any appropriate circumstances, particularly where a risk is posed to the safety of people, property or the environment. Where we do so we shall be entitled to charge the customer concerned on a normal commercial basis. (1.4) Customers my themselves be liable for any loss or damage caused by them, their crew or their vessels and while their vessel or other property is on our premises or is being worked on by us they shall be obliged to maintain adequate insurance, including third party liability cover for not less than £2,000.000. and where appropriate, Employers liability cover in respect of any employee. Customers shall be obliged to produce evidence of such insurance to us within 7 days of a request to do so.

CLAIMS …….. Any claim against Steel Developments shall be made in writing within seven days of receipt of the goods by the buyer. No claim shall be made by the buyer after this period.

ALTERNATIVE CONDITIONS …….. Unless expressly accepted by us in writing, any deviations from or contradiction to these conditions in your order will be treated as inapplicable and no variation of these terms will be accepted unless confirmed by us in writing.