OPINION
Opinion by
Woodhaven Homes, Inc. (Woodhaven, Inc.) and Woodhaven Partners, Ltd.(Woo-dhaven Partners) (collectively Woodhaven) appeal the trial court’s order denying their motion to compel arbitration. In a single point of error, Woodhaven contends the trial court abused its discretion in denying its motion to compel arbitration. We overrule Woodhaven’s point of error and affirm the trial court’s order.
Background
Woodhaven Partners is a limited partnership doing business under the name of ‘Woodhaven Homes.” Woodhaven, Inc. is an independent contractor for Woodhaven Partners. The relationship between Woo-dhaven Partners and Woodhaven, Inc. is set forth in a management agreement. Pursuant to that agreement, Woodhaven, *204 Inc. serves as construction manager for Woodhaven Partners.
On March 26, 2000, Kevin and Gwendolyn Alford signed a four-page contract with Woodhaven Partners. The agreement was for the construction of a house at 314 Raintree Street in Sunnyvale, Texas. The contract contained an arbitration clause. On October 4, 2000, the Alfords entered into an agreement to purchase a house at a different address, 316 Raintree Street. They purchased the house at 316 Raintree Street on October 11, 2000. At the closing, Woodhaven, Inc. gave a limited warranty to the Alfords. The limited warranty attempted to disclaim warranties of habitability and good and workmanlike construction.
After moving into their new home, the Alfords found many defects. Woodhaven, Inc. failed to make repairs under the limited warranty. The Alfords sued Woodha-ven, Inc. alleging causes of action arising under the limited warranty. They did not sue Woodhaven Partners because it is not a party to the limited warranty. Woodha-ven Partners intervened in the lawsuit and Woodhaven then moved to compel arbitration. The trial court denied the motion and this interlocutory appeal followed.
STANDARD OP REVIEW
We review a trial court’s order denying a motion to compel arbitration under a “no evidence” standard.
Phillips v. ACS Mun. Brokers, Inc.,
Existence of an AbbitRation AgReement
Woodhaven contends that the arbitration clause in the March 26 purchase agreement covers the Alfords’ claims. The threshold inquiry is whether there exists an agreement to arbitrate a dispute regarding the property at 316 Raintree.
A party seeking to compel arbitration must show the existence of an arbitration agreement and show that the claims raised fall within the scope of that agreement.
In re Oakwood Mobile Homes, Inc.,
Woodhaven argues that the Alford’s claims presume the existence of the March 26 purchase agreement and that is “sufficient to trigger the arbitration clause in that agreement.” However, the Alfords’ claims depend solely on the October 4 purchase agreement that pertains to the house they actually purchased at 316 Rain-tree and the limited warranty obtained on that property. Neither the October 4 purchase agreement nor the limited warranty contains an arbitration clause.
Although Woodhaven contends the October 4 contract is an addendum to the March 26 contract, the record does not support that contention. The October contract notes that the Alfords paid $2000 in earnest money on March 26, 2000. This notation, however, does not constitute a *205 reference to an addendum to the March 26 contract.
Woodhaven also asserts that the March and October purchase agreements must be read together because they involve the same transaction—the sale of
a
home by Woodhaven Partners and the purchase of
a
home by the Alfords. As a general rule, multiple documents pertaining to the same transaction will be construed together as one contract.
Jones v. Kelley,
The cases relied upon by Woodhaven to support its argument that the two agreements involve the same transaction are readily distinguishable. In
AutoNation USA Corp. v. Leroy,
Woodhaven, Inc. also contends that it can compel arbitration under the doctrine of equitable estoppel. We disagree. Equitable estoppel allows a nonsignatory to compel arbitration in two circumstances. The first circumstance is where the signatory to a contract containing an arbitration clause raises allegations of substantially interdependent and concerted misconduct by both a nonsignatory and a signatory to the contract.
McMillan v. Computer Translation Systems & Support, Inc.,
We conclude that neither of the above circumstances applies in this case. The Alfords alleged claims against only a non-signatory, Woodhaven, Inc. All of the Alfords’ causes of action against Woodhaven, Inc. pertain to the limited warranty. The sole signatories to that warranty are Woodhaven, Inc. and the Alfords.
The March 26 purchase agreement containing the arbitration clause is for a house which the Alfords did not purchase. The Alfords’ claims pertain to the house they actually purchased. More specifically, their claims center on the limited warranty from Woodhaven, Inc. obtained by the Al-fords at closing. Contrary to Woodhaven’s assertion, the Alfords do not and need not rely on the terms of the March 26 pirn-chase agreement in asserting its claims against Woodhaven, Inc. Accordingly, Woodhaven cannot rely on equitable estop-pel to enforce the arbitration clause in the March 26 purchase agreement.
We conclude there is no enforceable arbitration agreement. Accordingly, the trial court properly denied the motion to compel arbitration.
See Freis,
